Gretsch,
I've purchased a lot of cosmetic and skin care "crap" in my day. I've had this book for 3 months now. (usually that's enough time for me to either regret or applaude my purchases) I'm still loving this book. She DOES categorize people into dry or oily but it's on a scale and YOU determine, through YOUR answers, where you fall on that scale.
Bottom line, this book is sold at Sam's Club for less than $12. How can you NOT afford it?? I'm sure you've splurged on less worthy indulgences.
I say go for it. Just my 2 cents. (now you only need $11.98 more)
Sondra