I have read each and every single Trinny and Susannah book, including their new one, and as I am under the age of 21, it does not really apply to me, BUT the best book out of the entire series has to be What You Wear Can Change Your Life. And it's true! My life has been changed so much - all I used to wear is black and it used to totally depress me. Now I know what colours I can wear, what styles I suit etc. I really would recommend this book - I have spent hours reading it and putting together outfits etc! (and have had the best fun) I have also learnt how to make my lips look bigger, how to apply foundation and what type of mascara to use. BUY THIS BOOK - It'll be worth it!!!