“Minders of Make-Believe: Idealists, Entrepreneurs, and the Shaping of American Children’s Literature” by Leonard S. Marcus is a 416-page textbook published by Houghton Mifflin Harcourt Publishing Company in 2008. The book delves into the world of children’s literature in the United States during the 20th century, exploring the roles of idealists and entrepreneurs in shaping the industry. With a focus on the impact of these influencers on American children’s literature, the book offers a comprehensive look at the cultural and historical significance of this genre.