It's been 23 years since it first hit shelves.
Harry Potter and the Philosopher's Stone was just the first step in a magical journey that has now spawned seven books; eight films; a stage adaptation and a spin-off series.
Not to mention the theme parks - which are just really, really fun.
The first book introduced us to the world of witchcraft and wizardry, Hogwarts - and, of course, The Boy Who Lived.
And, thankfully, it's just as magical as ever.
So we decided to put your Harry Potter knowledge to the test this week and see how well you can remember the book version of
Harry Potter and the Philosopher's Stone?
And remember: there were some changes made in the transition from the page to the screen, so this may be a bit trickier than you think.
Like, what did Hermione really say to Ron when she was correcting his work in Charms class? And can you remember when Harry first got Hedwig?
It's time to take our quiz and find out - and good luck!
