The retail price of a children's book is the price set by the publisher or retailer for the end consumer. This price reflects the cost of production, marketing, and distribution of the book, as well as the desired profit margin. Retail prices can vary based on factors such as book format (hardcover, paperback, e-book), market demand, discounts, and regional pricing strategies. Understanding retail prices is crucial for consumers, authors, and retailers alike, as it influences purchasing decisions and sales strategies.