With illustrations, this work is a biography of Robert Stephenson Smyth Baden-Powell. He was an accomplished soldier, who first came to wide public notice as the hero of the Siege of Mafeking during the Boer War. He is better known as the founder of the Boy Scout movement. He was concerned with the social lives and imagination of young people, and developing an associational educational form. He placed a special value on adventure; on children and young people working together and taking responsibility (his patrol building on the idea of natural friendship groups and gangs); on developing self-sufficiency; and on learning through doing.