This book tends to be deceptively simplistic in the process of soap making. Don't mistake that simplicity though, as for, a process that is NOT hazardous. Lye, aka: Sodium Hydrochloride, aka: Caustic Soda, can dissolve skin to the bone, destroy lungs, and create permanent blindness. If it touches aluminum, it creates hydrogen gas, (extremely flammable) can splinter wood, and erode glass. So pay close attention to every thing the author calls for in reference to safety and then some. Read a Wiki on Lye, and sober yourself up to the task of working with it. Also, note the "one liner" that the soap remains 'green' or somewhat caustic and therefore requires a curing process of 30 days.
All that said, the book is well made and well written and a comprehensive guide to some GREAT SOAP!! In the modern world, soap, or what we know as soap, is taken for granted...but try some of this "real soap", and I think you just might find it is a commodity of luxurious standards. The book also encourages you to utilize your own creativity, and the possibilities are exponential.