Anna James is the author of the Pages & Co. series; Tilly and the Book Wanderers, Tilly and the Lost Fairy Tales, and Tilly and the Map of Stories.  She's also an arts journalist specialising in books and theatre, and the host/creator of the Lush Book Club  - basically, she's a must-follow for all things bookish so we're thrilled she's put this list together for us on this most perfect topic. 
Find her on Twitter @acaseforbooks

Anna says:

It will come as no surprise that I am fond of books about books and writing, both novels and non-fiction. Anything that explores why reading, bookshops and libraries have such a hold on our imagination. Here are some of my favourites.