Had two ethnic stylist/tenents ask me today about working on their clients skin and I've little knowlege in that area.  I'm sure could google it but rather have your recommendations, just a good all-around book. enough to at least start with the basics. I have Milady's Standard Esthetics Fundamentals from school, PCA book and have taken Peel Fundamentals and Advanced Peels, just not enough detailed info in general for me. Thank you for your time!