This book arrived on my desk to cries of ''Amy Farrah Fowler's written a book?'' or ''No, that's Blossom'' depending on your generation. Mayim Bialik is or was both, of course, but in addition to being a well-known sitcom actress she is also a neuroscientist (and the only PhD on The Big Bang Theory, except for the characters). Aimed at teenagers, this book focuses on growing up as a girl, or ''Girling up'' if you will, and what it means to transition from school girl to grown up, via that hideous detour of teenage years.