A description of what you'll find in the bookstore, by Italo Calvino, in his novel If on a Winter's Night a Traveler:
Books You Haven't Read...the Books You Needn't Read, the Books Made For Purposes Other Than Reading, Books Read Even Before You Open Them Since They Belong To The Category Of Books Read Before Being Written...the Books That If You Had More Than One Life You Would Certainly Also Read But Unfortunately Your Days Are Numbered...the Books You Mean To Read But There Are Others You Must Read First, the Books Too Expensive Now And You'll Wait Till They're Remaindered, the Books Ditto When They Come Out In Paperback, Books You Can Borrow From Somebody, Books That Everybody's Read So It's As If You Had Read Them, Too.