A human document in an unusual field -- stories of inventions and inventors as introduction to the serious question of fostering the spirit of invention in the future. In successive chapters, the author tells of ideas that made good, of the stories behind successes. Repeatedly, the lesson learned is that success is accompanied by perseverance, imagination in pursuing ideas, luck- in reaching the right man at the right time, hard work in exploring the field, years of unrewarded effort before meeting success. The author then goes on to the practical aspects of how to discover what is needed, what are the contributions of industrial research, what can be patented and how, of the swindles, the procedure in selling to a manufacturer, the alternative in making and selling an invention rather than an idea, production problems, promotion and advertising problems, testing, pricing, securing a trade mark, copyrighting, etc. etc. An enormous amount of sound commonsense is highlighted by human interest and made good reading. There's a great deal here that would interest boys.