Catalogues of imaginary libraries are an obscure but fruitful area of collecting. The tradition of imaginary books, which exist only within other books, goes back at least to Rabelais, who invented a list of book titles for the Abbey of Saint-Victor in Gargantua and Pantagruel (c.1532). – Emi Hastings, “Catalogues of Imaginary Libraries,” 2014

Borrowers of books — those mutilators of collections, spoilers of the symmetry of shelves, and creators of odd volumes. – Charles Lamb, Essays of Elia, "The Two Races of Men," 1822