A world
The Wizarding World
Imagined by J. K. Rowling.
8 volumes
A N.E.W.T.-level Potions textbook. The printed text is unremarkable. The previous owner's handwriting in the margins is the entire plot of the sixth novel.
A standard Hogwarts textbook classifying the magical creatures of the world, and one of the few fictional books you can order tonight and have on your desk tomorrow.
The standard history of the wizarding world, on every Hogwarts book list, and the first place Harry ever reads about himself.
A hostile, opportunistic, extensively researched biography published within weeks of its subject's death. Almost everything in it is true, which is the problem.
A textbook that has to be restrained with a belt, attacks anyone who opens it, and can only be calmed by stroking the spine. Flourish and Blotts keeps the stock in a cage.
A history of the game from the marshes of Queerditch to the modern professional leagues, borrowed from the Hogwarts library and never quite returned on time.
The book that explains how to make a Horcrux, removed from the Hogwarts library by Dumbledore and kept in his office. Hermione steals it on the way out of the castle.
A book of wizarding fairy tales left to Hermione Granger in Dumbledore's will. One of the five stories in it turns out to be the plot of the novel.