Tried a few links and found them broken. For example, Dunn's book on soap making. Nonetheless, Googled it: https://www.amazon.com/Scientific-Soapmaking-Chemis

Tried a few links and found them broken. For example, Dunn's book on soap making. Nonetheless, Googled it: https://www.amazon.com/Scientific-Soapmaking-Chemistry-Cold-Process/dp/1935652095/ref=sr_1_1 https://www.amazon.com/Scientific-Soapmaking-Chemistry-Cold-... The lead me to his Caveman Chemistry book on Amazon as well: https://www.amazon.com/Caveman-Chemistry-Projects-Creation-Production-ebook/dp/B0CPYVXHL2?ref_=ast_author_dp https://www.amazon.com/Caveman-Chemistry-Projects-Creation-P...