Bibliophilia is the love of books; a Bibliophile is a lover of books.
The classic bibliophile, exemplified by Samuel Pepys, is one who loves to read, admire and collect books, often nurturing a large and specialised collection. Bibliophiles do not necessarily want to possess the books they love; an alternative would be to admire them in old libraries. However, the bibliophile is usually an avid book collector, sometimes pursuing scholarship in the collection, sometimes putting form above content with an emphasis on old, rare, and expensive books, first editions, books with special or unusual bindings, autographed copies, etc.
Bookworm is one who spends much time reading or studying. A person who pays more attention to formal rules and book learning than they merit or someone who spends a great deal of time reading.
