Naudé devotes an entire chapter to book selection, remarked upon throughout. The first authors who need to be purchased are those considered experts in their respective fields. No matter whether they are ancient or modern works, if a book is held in high regard by practitioners of a particular field then it should be present in any collection. In addition, any well known interpretations or commentaries that exist are a necessity. Naudé suggested purchasing books in the original languages because meaning can often be lost in translation. He is strongly against censorship of any kind. Naudé believes that every book has a reader regardless of the subject; and that information should be free and available. Readers could always find use of a book, even if it is to refute the ideas presented on its pages. Certain books are popular at times but later forgotten; he argued that it would be beneficial to a library if there were multiple copies of these books to accommodate the popular tastes of the times.