A very thorough book of explanations and how-to guide. Seems slightly dated only because there are so many bells-and-whistles resources online these days. ( )

his book was not very helpful to me. I didn't want a rough recipe, I wanted precision and scientific understanding of process. She provided neither. It was still a useful read, though I found some information in it contradictory to information I read in more recently published books, especially the mixing lye solution with oils part. ( )