Yes, children's book authors can make money, but the amount they earn can vary widely based on several factors. Here are some key considerations that influence the earnings of children's book authors:

1. Advances and Royalties:
   • Advances: Many traditional publishers offer an advance against royalties when they acquire a book. This advance is a lump sum payment given to the author up front. The amount can range from a few thousand dollars to much higher, depending on the author's reputation and the perceived potential of the book.
   • Royalties: After the book is published and has sold enough copies to cover the advance, the author earns royalties. These are typically a percentage of the book's sales. For children's books, royalties can range from 5% to 10% of the retail price, but this can vary.
2. Self-Publishing:
   • Some authors choose to self-publish their books. This can be more lucrative per copy sold, as self-published authors typically keep a higher percentage of the sales. However, self-publishing also involves more upfront costs for editing, illustration, printing, and marketing.
3. Illustrations:
   • In children's books, illustrations play a crucial role. If the author is also the illustrator, they may receive a higher advance and royalties. If they work with a separate illustrator, the earnings are usually split.
4. Book Sales:
   • The overall success of the book in terms of sales significantly impacts the author's earnings. Bestselling books can earn substantial income, while books that sell fewer copies generate less revenue.
5. Subsidiary Rights:
   • Authors can earn additional money through the sale of subsidiary rights, including foreign language editions, movie rights, merchandising, and audiobook rights.
6. Educational Market:
   • Books that are adopted by schools or libraries can provide a steady source of income. Authors may receive bulk orders from educational institutions.
7. Public Appearances and Events:
   • Authors often supplement their income by speaking at schools, libraries, and conferences. These engagements can provide additional revenue streams.
8. Series Potential:
   • Authors who create a popular series may benefit from ongoing sales of multiple books, increasing their overall earnings.

While some children's book authors can achieve significant financial success, many earn modest incomes, especially when starting. The key to financial success often lies in creating high-quality, appealing content, effectively marketing the books, and sometimes, building a brand over time.