In libraries, books in the stacks are arranged by subject, so when you find a title in the stacks, browse the same shelf or shelves for related titles.
Watch this short video to learn how to read a Library of Congress Classification call number so you can find books in the stacks.
Books are good places to acquire in-depth information on a topic.
Remember: you won't necessarily be reading a book from cover to cover.
Monographs ("single - writing") are books dedicated to one subject.