What do you want to know about molding and casting? It is probably in this book. How to work with Plaster, how to work with urethanes and resins. All about mold making, all about casting materials. From the simplest to the most complex. The book even explains how to do vacuum molding. I've just begun to do molding and casting and so far everything I've needed to know came right out of this book. And it is a lot of fun, too.