We contacted engineers, hobbyists, train sets designers, teachers, and education researchers to get their opinion on the best train sets for your little boy. Professionals who work with children use these devices (trains) to explore new train applications and map their impact. Children were encouraged to discuss their first-hand experiences and ideas about train sets and trains in general, the result is engaging, entertaining, and insightful collection of toy train sets for little boys web site for a broad little boy age group.