Carl and Steve Sommer are the co-authors of Complete EDM Handbook (now revised full color edition). It is used as a textbook in colleges and trade schools.
Complete EDM Handbook: Available Free on our Website.
Carl Sommer has also written Non-Traditional Machining Handbook (second edition). It is also used in colleges and trade schools. This book includes: Wire EDM, Ram EDM, Small Hole EDM Drilling, Photochemical Machining, Electrochemical Machining, Plasma Cutting, Rapid Prototyping, Abrasive Flow Machining, Ultrasonic Machining, Thermal Energy Deburring, Waterjet Machining, Laser Cutting, Welding, Cladding, Alloying, Heat Treating, Marking, and Drilling.