Do you need to know where to get transparent concrete, Amish tools, color-changing LEDS, Japanese woodworking tools and so much more? Neither do I! But that didn’t stop me from putting so many bookmarks in this fascinating book that it ended up looking like a hedgehog. Modeled on the old Whole Earth catalog, this book lists favorites recommended by users from all over the world. From the most obscure to the most common, if you need to make something, there’s a tool for it in here.