This is a wonderful book.If you have read either the biography by Brenda Maddox Rosalind Franklin: The Dark Lady of DNA or the book by Anne SayreRosalind Franklin and DNA or both,this book will be like sunlight shining through a lattice work of previous information. If you have not read either or seen the 1987 BBC play and are starting from scratch re-Rosalind,then you will be introduced to a rather wonderful person who has described her famous sister with very gentle personal tact and deep love.You can learn about her(the sister's) remakable discoveries and the dramatic and rather amazing vortices of destiny she seemd to get mixed up in ,And yet she was almost the model of a devoted scientist keen to avoid the glamour or show biz elements which almost came her way.Almost a 'Curie'.!!! So it is a really lovely book,but who could not shed a tear at the end?.It is so gently touched on by this wonderful sister,Jennifer Glynn, but one can feel the sadness and pain even after 50+ years. The book is like Rosalind as one imagines her.Fairly terse ,to the point but warm and loyal and faithful . No other characters are attacked in the book or belittled but all tend to assume their right size,especially the 3 nobel prize winners. (Actually, I for one am glad she never got that doubtful accolade.To give prizes to scientists as if science were an olympic sport seems to me quite ridiculous.Like asking the football league to judge Shakespeare plays.) So may this book reach those whose hearts and minds resonate for the humanly scientific spirit .