Let’s begin with a brief quiz. Have you ever arrived home, triumphant with glee over your latest bookshop find, only to discover that you already have the book you just purchased? Have you ever attempted to bring home unobserved a stack of newly purchased books, and thus avoid the censorious lift of the eyebrows of loved ones which so often greets your latest acquisitions? Have you ever begun reading a book you’ve been looking forward to for years, even decades, only to discover your own notes in the margins? (If so, you are a bibliolathas.) Are you on first-name terms with the staff of three bookshops or more? Have you ever had to reinforce a sagging floor because of the weight of your books? Have you ever had to add a room on to your home or move to a larger one to accommodate them?