This hardback book by Arlene Erlbach is called Bicycles, How It's Made. In this book you'll discover how bikes have changed over the past 200 years. Then you'll visit a factory & see how bikes are put together- from the latest in computer design to the old-fashioned nuts & bolts. This book even shows you have to make simple bike repairs yourself. Measures 7.25 inch x 8.5 inch & has 48 pages.