In class, do you answer every question or quietly observe? #BackToHogwarts https://t.co/tkbu0SiYmZ

Join forces with fans from around the world at a special weekend event 31 Aug to 1 Sep in Indianapolis to celebrate Harry Potter: Wizards Unite. Enlist now: https://t.co/jgO51MFXex https://t.co/gV54fzhMo5

While Hermione and Professor Trelawney may have had their differences, Emma Watson found a role model in Emma Thompson. #BackToHogwarts https://t.co/sbFXuVq6zp

"#BackToHogwarts means the start to the happiest time of the year...New spells, new adventures and most of all, new memories!" : dapperministerofmagic  \\\ What does going #BackToHogwarts mean to you? Post a photo and share your story! https://t.co/FvoD2Do9tn

Practice your pronunciation. https://t.co/IF9Jmp2NNV

Which class are you most excited to take when you go #BackToHogwarts this year?

#TBT to a charming first lesson with Professor Flitwick. #BackToHogwarts https://t.co/XSF0YRRQk6

What new secrets will you discover when you head #BackToHogwarts? https://t.co/xAKd3KZPkS

The headmaster's office is chock-full of curiosities. Discover them for yourself at @wbtourlondon. #BackToHogwarts https://t.co/MkcHvGxuoU

RT @SYFYWIRE: We went all the way to @UniversalORL to assemble our very own Frog Choir.

 Let's all sing HBD to #HarryPotter!  https://t.co/FOoAVFFzbZ

 “Happy Birthday Harry Potter” 
https://t.co/RFwAvZr6ab
#HappyBirthdayHarryPotter

RT @pottermore: Our hero turns 39 today ��#HappyBirthdayHarryPotter  https://t.co/qWsJP7i7q7

RT @wbtourlondon: Harry's birthday marked the moment he first learned of the wizarding world. To celebrate this special day, tell us about your first experience with the Harry Potter film series. #HappyBirthdayHarryPotter https://t.co/M6cFoT6nrr

RT @HotTopic: Happee Birthdae Harry Potter.  Celebrate the boy who lived & put on something magical: https://t.co/VdJ7PFRN2o 

#happybirthdayharrypotter https://t.co/xp6CjrbXkm

RT @BloomsburyBooks: Happy birthday Harry Potter! From learning yer a wizard to finding true friends, and realising that your parents will be with you #always – here are just some of our favourite Harry moments. ��#HappyBirthdayHarryPotter https://t.co/IVe8sjn5RP

From The Boy Who Lived, to a father of three, Harry's story continues on. #HappyBirthdayHarryPotter https://t.co/Wb3DW5kC8q

From The Boy Who Lived, to a father of three, Harry's story continues on. #HarryBirthdayHarryPotter https://t.co/kC4HN78cjS

RT @wbtourlondon: Enjoy a magical Hallowe’en evening on the set of the Hogwarts Great Hall. #HogwartsAfterDark tickets are on sale now! https://t.co/QL1khfHfzm https://t.co/A7ejZ9Rlhr

RT @wbtourlondon: Wizard, Witch or Muggle - embrace the #DarkArts this Hallowe’en and explore the darkness of the Wizarding World at #WBTourLondon.

Neville's first flying lesson may have ended in disaster, but it was endless fun for actor Matthew Lewis. https://t.co/Z3YQ5qOQtS