The Wizarding World is a hidden society that exists alongside the non-magical population, known as Muggles. Most Muggles are unaware that witches and wizards live among them.

The magical community maintains secrecy through laws, protective enchantments, concealed buildings, and memory-modifying spells.

Its society has its own government, schools, hospitals, newspapers, shops, sports, laws, and traditions.

• Wizards and witches: People capable of performing magic.

• Muggles: People without magical abilities.

• Muggle-borns: Magical people born to non-magical parents.

• Half-bloods: People with mixed magical and non-magical ancestry.

• Pure-bloods: People from families that claim entirely magical ancestry.

• Squibs: People born into magical families who cannot perform magic.

Blood status can influence social relationships, especially among traditionalist families. However, ancestry does not determine someone's magical ability.

2. Hogwarts School of Witchcraft and Wizardry

Hogwarts is a boarding school in Scotland that educates young witches and wizards, generally from ages eleven to seventeen.

Students travel to school on the Hogwarts Express from Platform Nine and Three-Quarters at King's Cross Station in London.

The four houses

Gryffindor

Scarlet and gold · Lion

Values courage, determination, nerve, and chivalry.

Notable students: Harry Potter, Hermione Granger, Ron Weasley, Neville Longbottom, Ginny Weasley.

Head of House: Minerva McGonagall.

Slytherin

Green and silver · Serpent

Values ambition, resourcefulness, determination, and cunning.

Notable students: Draco Malfoy, Pansy Parkinson, Blaise Zabini, Theodore Nott, Vincent Crabbe, Gregory Goyle.

Head of House: Severus Snape during Harry's later school years.

Ravenclaw

Blue and bronze · Eagle

Values intelligence, curiosity, creativity, and learning.

Notable students: Luna Lovegood, Cho Chang, Padma Patil, Michael Corner.

Head of House: Filius Flitwick.

Hufflepuff

Yellow and black · Badger

Values loyalty, fairness, patience, and hard work.

Notable students: Cedric Diggory, Nymphadora Tonks, Hannah Abbott, Ernie Macmillan, Susan Bones.

Head of House: Pomona Sprout.

Subjects taught at Hogwarts

Students study subjects such as:

• Charms — spells that change an object's properties or behavior.

• Transfiguration — changing the form of objects and living things.

• Potions — preparing magical mixtures using ingredients.

• Defence Against the Dark Arts — protection against dangerous magic and dark creatures.

• Herbology — magical plants and their uses.

• History of Magic — the history of the wizarding community.

• Astronomy — studying celestial bodies.

• Flying — learning to ride broomsticks.

Older students can also take electives such as Ancient Runes, Arithmancy, Divination, Care of Magical Creatures, and Muggle Studies.

The school has a strict house system, prefects, Quidditch teams, common rooms, house points, examinations, and an annual House Cup.

3. Important characters

Harry Potter and his closest friends

Harry Potter

• House: Gryffindor

• Born: July 31, 1980

• Parents: James and Lily Potter

• Personality: Brave, stubborn, loyal, impulsive, protective.

• Known for: Surviving Voldemort's attack as a baby and becoming central to the fight against him.

• Wand: Holly, eleven , phoenix feather core.

Hermione Granger

• House: Gryffindor

• Born: September 19, 1979

• Parents: Two Muggles who work as dentists.

• Personality: Intelligent, organized, outspoken, principled.

• Known for: Exceptional academic ability, research skills, and helping Harry solve difficult problems.

• Wand: Vine wood, dragon heartstring core.

Ron Weasley

• House: Gryffindor

• Born: March 1, 1980

• Parents: Arthur and Molly Weasley.

• Personality: Humorous, loyal, competitive, occasionally insecure.

• Known for: His chess skills, close friendship with Harry, and willingness to stand by his friends.

• Later marries Hermione Granger.

Ginny Weasley

• House: Gryffindor

• Born: August 11, 1981

• Family: The youngest Weasley child.

• Personality: Confident, witty, independent, determined.

• Known for: Her Quidditch ability, powerful Bat-Bogey Hex, and becoming an accomplished player.

• Later marries Harry Potter.

Hogwarts professors and staff

Albus Dumbledore — Headmaster of Hogwarts for most of Harry's school years. Brilliant, perceptive, strategic, and sometimes secretive. One of the most accomplished wizards of his era.

Minerva McGonagall — Transfiguration professor and Gryffindor Head of House. Strict, disciplined, courageous, and deeply protective of her students.

Severus Snape — Potions professor and later Defence Against the Dark Arts professor. Sarcastic, intimidating, highly skilled, and secretive. His history with Harry's parents shapes much of his behavior.

Rubeus Hagrid — Half-giant, Hogwarts gamekeeper, and Care of Magical Creatures professor. Warmhearted, loyal, and fascinated by unusual creatures.

Filius Flitwick — Charms professor and Ravenclaw Head of House. A talented duelist, enthusiastic teacher, and expert in charms.

Pomona Sprout — Herbology professor and Hufflepuff Head of House. Practical, patient, and knowledgeable about magical plants.

The Slytherin students and their circle

Draco Malfoy

Born June 5, 1980. Son of Lucius and Narcissa Malfoy. A proud, competitive, sharp-tongued pure-blood who often bullies Harry. He is raised to believe his family's status makes him superior, but later struggles under the demands placed on him by Voldemort.

Blaise Zabini

Slytherin student in Harry's year. Cool, aloof, and judgmental about people he considers beneath him. His mother is famous for marrying wealthy men who subsequently die.

Pansy Parkinson

Slytherin student and Draco's close associate. Sharp-tongued, status-conscious, and openly hostile toward Harry and his friends. She is often seen with Draco's group.

Theodore Nott

A Slytherin in Harry's year. Intelligent, reserved, and from a pure-blood family associated with Voldemort's supporters. He is less prominent in the novels than Draco, leaving considerable room for roleplay interpretation.

Vincent Crabbe and Gregory Goyle

Draco's usual companions. They often intimidate other students and follow Draco's lead. Both come from families associated with the Death Eaters.

Other students worth knowing

• Neville Longbottom: Gryffindor; initially shy and clumsy, eventually becomes a courageous fighter and skilled Herbologist.

• Luna Lovegood: Ravenclaw; imaginative, unconventional, perceptive, and unbothered by ridicule.

• Cho Chang: Ravenclaw; a talented Seeker who has a romantic relationship with Harry.

• Cedric Diggory: Hufflepuff; fair-minded, popular, talented, and a Triwizard Tournament champion.

• Fred and George Weasley: Gryffindor twins, famous for pranks and inventing magical joke products.

• Percy Weasley: A highly ambitious and rule-conscious Weasley brother who works for the Ministry.

• Lee Jordan: Gryffindor student and enthusiastic Quidditch commentator.

• Lavender Brown: Gryffindor student, interested in Divination, and briefly Ron's girlfriend.

• Parvati and Padma Patil: Twin sisters; Parvati is in Gryffindor and Padma is in Ravenclaw.

• Oliver Wood: Gryffindor Quidditch captain, intensely focused on winning.

• Angelina Johnson: Gryffindor Chaser and later Quidditch captain.

• Katie Bell: Gryffindor Chaser and member of the original Dumbledore's Army.

• Seamus Finnigan: Gryffindor, known for his friendship with Dean Thomas and occasional mishaps in spellwork.

• Dean Thomas: Gryffindor, artistic and loyal, and a member of Harry's friend group.

4. The most important families

The Weasley family

Arthur and Molly have seven children: Bill, Charlie, Percy, Fred, George, Ron, and Ginny. They are a loving, close-knit family with limited money but strong loyalty. They are pure-bloods who reject blood prejudice.

The Malfoy family

Lucius, Narcissa, and Draco live at Malfoy Manor. Wealthy, influential, and proud of their pure-blood ancestry, the family has longstanding ties to powerful figures in the Ministry and the Death Eaters.

The Black family

An old pure-blood family with a tradition of blood-status prejudice. Sirius Black rejects his family's ideology and becomes Harry's godfather. Regulus Black, his younger brother, becomes involved with Voldemort before turning against him.

The Potter family

James Potter comes from a wealthy wizarding family; Lily Evans is Muggle-born. They join the Order of the Phoenix and are murdered by Voldemort when Harry is a baby.

5. The Ministry of Magic and wizarding politics

The Ministry of Magic governs Britain's magical community. It regulates magical law, international secrecy, magical creatures, transportation, and law enforcement.

Important figures include:

• Cornelius Fudge: Minister for Magic during Harry's early years; often prioritizes political reputation over uncomfortable truths.

• Rufus Scrimgeour: A former Auror who becomes Minister during the Second Wizarding War.

• Pius Thicknesse: A Ministry official who becomes Minister under Voldemort's control.

• Dolores Umbridge: A Ministry official who becomes Hogwarts' High Inquisitor and later Headmistress. Authoritarian, cruel, and obsessed with rules and control.

• Amelia Bones: Head of the Department of Magical Law Enforcement, respected for her integrity.

• Kingsley Shacklebolt: An Auror and member of the Order of the Phoenix who eventually becomes Minister.

• Barty Crouch Sr.: A powerful Ministry official known for his uncompromising approach to law enforcement.

• Ludo Bagman: A former Quidditch player and Ministry official who oversees the Triwizard Tournament alongside Crouch.

The Ministry's law-enforcement branch includes Aurors, highly trained witches and wizards who investigate and apprehend dangerous dark wizards.

6. Voldemort, the Death Eaters, and the war

Lord Voldemort

Born Tom Marvolo Riddle on December 31, 1926. A gifted Hogwarts student who becomes obsessed with immortality, domination, and blood purity despite having a Muggle father. He murders to gain power and leads the Death Eaters. His greatest fear is death.

His principal followers

• Bellatrix Lestrange: A fanatically devoted Death Eater, a formidable duelist, and a member of the Black family by birth.

• Lucius Malfoy: Wealthy, influential, manipulative, and a high-ranking Death Eater.

• Narcissa Malfoy: Draco's mother. Protective of her family and willing to defy Voldemort when her son's safety is at stake.

• Peter Pettigrew: A former friend of James Potter who betrays the Potters to Voldemort.

• Barty Crouch Jr.: A devoted follower who helps Voldemort return to power.

• Antonin Dolohov: A dangerous Death Eater and skilled duelist.

• Fenrir Greyback: A werewolf who deliberately targets children and aligns himself with Voldemort.

• Augustus Rookwood: A Death Eater who once worked as a Ministry spy.

• Yaxley: A Death Eater who helps Voldemort take control of the Ministry.

The resistance

The Order of the Phoenix is a secret organization founded by Dumbledore to oppose Voldemort.

Its members include Sirius Black, Remus Lupin, Alastor Moody, Kingsley Shacklebolt, Nymphadora Tonks, Molly Weasley, Arthur Weasley, Minerva McGonagall, and many others.

Harry and his friends later establish Dumbledore's Army, a student-led group that practices defensive magic and resists Umbridge's restrictions at Hogwarts.

7. Magic, magical objects, and creatures

Common magical abilities

• Apparition: Magical transportation from one place to another.

• Animagus transformation: The ability to transform into a specific animal.

• Metamorphmagus ability: The ability to change one's appearance without using a wand.

• Parseltongue: The ability to speak the language of serpents.

• Legilimency: Entering or sensing another person's thoughts.

• Occlumency: Defending one's mind against intrusion.

• Patronus Charm: A protective charm that produces a guardian-shaped manifestation.

• Unforgivable Curses: The Imperius Curse, Cruciatus Curse, and Killing Curse, whose use on another person is generally forbidden by wizarding law.

Famous magical objects

• The Elder Wand: A legendary wand associated with extraordinary power.

• The Invisibility Cloak: A rare cloak that conceals its wearer.

• The Resurrection Stone: An object that can summon shadowy representations of the dead.

• The Marauder's Map: A map showing Hogwarts' layout and the location of people within it.

• The Sorting Hat: Determines which Hogwarts house a new student belongs to.

• Time-Turners: Devices that allow limited travel backward through time.

• Horcruxes: Objects in which a dark wizard hides fragments of their soul.

• The Goblet of Fire: Selects champions for the Triwizard Tournament.

Magical creatures

• Hippogriffs: Proud creatures with the front half of an eagle and the body of a horse.

• House-elves: Magical beings who traditionally serve wizarding households.

• Phoenixes: Rare birds associated with rebirth, healing tears, and loyalty.

• Dragons: Extremely dangerous magical creatures.

• Thestrals: Winged horses visible to those who have witnessed death.

• Werewolves: People who transform into wolves during the full moon.

• Goblins: Intelligent magical beings who operate Gringotts Wizarding Bank.

• Centaurs: Intelligent beings who live in forests and study the stars.

• Boggarts: Shape-shifting beings that take the form of what someone fears most.

• Dementors: Dangerous beings that feed on happiness and can perform the Dementor's Kiss.

8. Places every roleplayer should know

• Diagon Alley: A shopping street for wands, books, robes, and other magical supplies.

• Knockturn Alley: A darker street associated with questionable magical merchandise.

• Hogsmeade: A nearby village with pubs, shops, and the Shrieking Shack.

• The Burrow: The Weasley family home.

• Malfoy Manor: The Malfoy family's grand estate.

• Grimmauld Place: The Black family home, later used as a headquarters by the Order.

• The Ministry of Magic: The center of British magical government.

• St. Mungo's Hospital: A hospital specializing in magical injuries and illnesses.

• Azkaban: A prison used to hold dangerous magical criminals.

• Godric's Hollow: The village where Harry's parents lived and died.

• The Forbidden Forest: Woodland bordering Hogwarts grounds, inhabited by magical creatures.

• The Room of Requirement: A concealed Hogwarts room that appears to meet a person's needs.

9. Quidditch

Quidditch is the principal broomstick sport in the British wizarding community.

Each team has seven players:

• Three Chasers score with the Quaffle.

• Two Beaters defend their teammates using Bludgers.

• One Keeper guards the goal hoops.

• One Seeker searches for the Golden Snitch.

House rivalries can be especially intense during the Quidditch season. Harry is Gryffindor's famous Seeker, while Draco plays Seeker for Slytherin. Oliver Wood, Angelina Johnson, Fred and George Weasley, and Cho Chang are other notable players.

10. The timeline of major events

• 1926: Tom Riddle is born.

• 1938: Dumbledore meets young Tom Riddle and brings him to Hogwarts.

• 1940s: Riddle studies at Hogwarts and begins exploring dark magic.

• 1970s: Voldemort's first rise to power; the original Order of the Phoenix forms.

• 1981: Voldemort attacks the Potter family, loses his physical form, and disappears.

• 1991: Harry begins his first year at Hogwarts.

• 1992–1993: The Chamber of Secrets is opened.

• 1993–1994: Sirius Black escapes Azkaban; Harry learns more about his parents' past.

• 1994–1995: The Triwizard Tournament takes place, and Voldemort returns to a physical body.

• 1995–1996: The Ministry denies Voldemort's return; Dumbledore's Army is formed.

• 1996–1997: The war intensifies, and Dumbledore dies.

• 1997–1998: Voldemort takes control of the Ministry; the Battle of Hogwarts ends the war.

• 2017: The epilogue shows Harry and Ginny's family at King's Cross, nineteen years after the Battle of Hogwarts.