Bookworm

Illustration of a red worm holding a book on a white background

Back in the day, (the early 1900s) people coined the phrase "Bookworm" referring to someone who is like those tiny silkworms that tend to hang out on the pages of print books. Jokingly it implies other meanings such as being nerdy, geeky or studious. Today, after all this time, bookworms are still synonymous with books and reading.