History’s Infamous Unsolved Crimes investigates three perplexing historical cold cases including one of the biggest art heists in history, the disappearance of Walter Collins, and three prisoners’ grand escape from Alcatraz. Readers will enjoy the story-like writing style all while learning about history, from missing Rembrandts to missing persons. Complete with sidebars, more facts, and informative diagrams. QR Codes in the books give readers access to book-specific resources to further their learning. Aligned to Common Core Standards and correlated to state standards. DiscoverRoo is an imprint of Pop!, a division of ABDO.