Leonardo da Vinci s descriptions and sketches of ingenious machines are brought into your hands in this fascinating book. Although these inventions were never built, they take form as 3-D models that you can assemble in "The Inventions of Leonardo da Vinci." Based on the personal notebooks and sketches of the Renaissance's most influential mind, this collection of exquisite ideas will fascinate and inspire. Discover the concepts that da Vinci used to design his flying machine, hydraulic contraptions, war devices, coiled mechanisms, and the famous mechanical man. Each invention is brought to life as a 3-D model to build, with da Vinci s own words and illustrations to provide further insight."