This is a fun read, if you like this sort of thing. The author deals briefly with Austen, Virgil, Homer, Joyce, Dante, Shakespeare, the Bible, the Qur'an, Proust, Tolstoy, Dostoevski, James, Cervantes, Murasaki, Aesop, Chaucer, the Arabian Nights, etc. It is full of tidbits reagarding and their work, all intended to provide the person knowing these things with the 'necesssary information' to impress others about books you haven't read... That, apparently, includes trying to fool College and University Interviewers in job applications...
The book suffers in that it tries to be too witty and clever for its own good (this is quite apart from the dubious matter which implies that, indeed, you do not have to read these books at all; you just need to know what other people (who presumably HAVE read them — although even that statement may be suspect) are saying about it.
This is purely about Trivia. Informed trivia; but trivia nonetheless. And to push the point, the author includes a Quiz at the end of 50 questions. The big mistake is that the author does not provide the answers! (At the top of the quiz, he tells us "The answers to most, but not all, of the questions are explicit in the text") There is not even an Index which might otherwise have helped... If Hitchings really believes that the type of person who would read this book would really go back and re-read the work with pen and paper in hand to identify and answer the questions, and perhaps then identify those questions which are NOT explicit in the text, then he needs to re-think!