{"product_id":"the-how-and-why-wonder-book-of-machines-vintage-paperback","title":"The How and Why Wonder Book of Machines, Vintage Paperback, 1960","description":"\u003cp\u003eThe How and Why Wonder Book of Machines by Dr. Jerome J. Notkin, with Sidney Gulkin, is a mid-century introduction to simple machines and how they work. Covering concepts such as levers, pulleys, inclined planes, screws, and wheels, the book explains the basics of work, force, and energy in a clear, question-and-answer format designed for young readers.\u003c\/p\u003e\n\u003cp\u003eIllustrated by George J. Zaffo and published by Wonder Books, copyright \u003c\/p\u003e\n\u003cp\u003eCondition:\u003cbr\u003ePaperback in good vintage condition with moderate wear to the covers, including edge wear and creasing. There is a handwritten gift inscription on the title page, and the interior shows light age toning with otherwise clean pages.\u003c\/p\u003e","brand":"Pretty Old Books","offers":[{"title":"Default Title","offer_id":51545968705826,"sku":"PRE-THEHOW-HG12","price":16.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0106\/0709\/9951\/files\/IMG_4186.jpg?v=1776451799","url":"https:\/\/prettyoldbooks.com\/products\/the-how-and-why-wonder-book-of-machines-vintage-paperback","provider":"Pretty Old Books","version":"1.0","type":"link"}