books

Hi, I've been using YouTube as an educational source on making bath bombs and have made them twice with varying success. I'd like to understand more about them so I can develop my own recipe, maybe bubble bars too. Does anyone have any book recommendations? Thank you!

This is a planner for soap makers. It has over 50 design and log pages. So room for 50 different soaps. There’s also a section at the back with conversion tables, reference charts, usage guides and troubleshooting...

I only have one Soap Making Book, but would like to have more on my ipad. Does anyone have books, apps or leaflets to suggest? I have credit in iTunes waiting for recommendations. Thanks