Easy Readers are intended for beginning readers and often are written with controlled vocabularies. They are usually written at first grade reading level and have fewer than 10 lines per page. Often they have between 40 and 70 pages, with labels like "I Can Read" or "Step into Reading."
There is a prize for the best Easy Readers, named after Theodor Seuss Geisel.
Picture books are books that are intended to be read aloud to children from 0 to 8 years old, with a few picture books even intended for older children (like The Mysteries of Harris Burdick by Chris van Allsburg). The text might be simple or complex, plain or poetic. They may be hand-sized (like The Tale of Peter Rabbit by Beatrix Potter) or quite tall. However, they rarely have more than 32 pages.
Fiction is the name given to stories that are made up rather than fact. Most picture books are fiction, but we use the term in this library to apply to novels, sometimes called chapter books, for students in grades 3 through 6.
Fiction for older children (usually grade 7+) & teens/adults is called Young Adult (shelved in North tower on 1st floor).