Look for a list of leveled books. Many school systems provide lists to their teachers and have placed them on their websites. You can find such lists by typing "book levels" in your search engine.
Go to a book store or book seller website to see a list of books for a particular age group. Most bookstores have a children's section and shelve books by age level.
Ask an expert for advice. Elementary school teachers and children's librarians are familiar with appropriate books for different reading levels.
Contact the publisher of a particular book to request its reading level. You can also ask the publisher for a list of their books for different reading levels.
Determine the level of a book using criteria developed by experts. Criteria include length, number of illustrations, length of words, complexity of sentences and familiarity of themes.