If u really want to sell ur book to 老外, here is my 2 cents
While more and more American found Oriental girls are charming, feminine and mysterious, "Summer in San Francisco" is an eye-opener for you to peek into three Chinese girls' real life in this most beautiful city of the world.
By the time you finish this book, you will surely become an expert, knowing them by heart, dating them with confidence and loving them by providing the emotional support they desperately need even though you might still wonder what women really want.
Maybe the most provoking words are the first quotation at the end of the book:
"Men may never understand women's love is very likely to be fatal attraction." [男人不会理解, 女人的爱情, 很多时候就是玉石俱焚的.]
Enjoy the book and stay cool.
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P.S. My English is more like business English [and Chinese English], but I am trying to tell you what your selling points are.
After all, you want more people read your book, right?