Quote from : The City of Dreaming Books Book

There were adventure stories supplied with cloths for mopping your brow, thrillers containing pressed leaves of soothing valerian to be sniffed when the suspense became too great, and books with stout locks sealed by the Atlantean censorship authorities ("Sale permitted, reading prohibited!"). One shop sold nothing but 'half' works that broke off in the middle because their author had died while writing them; another specialised in novels whose protagonists were insects. I also saw a Wolperting shop that sold nothing but books on chess and another patronised exclusively by dwarfs with blond beards, all of whom wore eye-shades.