Here is the link to the Hobbyist's guide to metal casting by Ben Baker. You can find a complete PDF version here >>> http://prometheus-foundry.com/The Hobbyist's Guide to Casting Metal--2nd Edition (web).pdf Save a copy for yourself and consider it mandatory reading for the home foundry enthusiast. If you would like to Drop Ben Baker a small thank you, please do so here>>> this link. NOW available for download!