Harry Potter by Picolo-kun http://picolo-kun.deviantart.com/gallery/56341906/Harry-Potter-books
Amazing Illustrations Of Famous Magical Elements And Spells From Harry Potter
Harry Potter. all credits to _picolo! you can find him on instagram if you're interested in his work.
"Boundless" by yuumei.deviantart.com on @DeviantArt 'From the depth of the ocean/ To the limitless sky/ Open a book, open your mind/ This world is boundless/ So let your imagination fly' (attribution?)
Inside the Well-Traveled Sketchbooks of Artist Dina Brodsky
More travel notebook illustrations - The Knight Bus & Florean Fortescue's Icecream Parlour from the Wizarding World of Harry Potter #bnottee