While word count is an important element in children's publishing, one topic that prompts great interest is the actual printed length of a book for children.
If you spend time at a local bookstore or library, you will find that most hardcover picture books for children are 32 or 48 pages. Books are printed in terms of "signatures" and each signature is 16 pages. This is why most often you will see picture books printed in those intervals. While the 48 page picture book is popular, most picture books for children ages 4-8 are 32 pages. It's important to note that of these 32 pages, it's common that only 28 are used for the story. Several pages are reserved for title and dedication page, copyright and author biography page. So be concise and powerful with your words and your storyline as you progress through the editorial process, for you may only have 14 page turns to capture and hold the attention of a young reader or listener.