I checked this out from the library. I've been reading several books on origin of life.This book was easy for me to read, despite the technically advance subject matter. The writing style is straightforward and easy to follow.The book is so well referenced. The author knows the field inside and out. This is professionally and clearly written. I liked the short sections with summary titles.I'm not quite sure why I decided not to give the book a five. I did enjoy reading it, and may read again sometime.Due to the rather technical subject matter, I'm not sure this would be very easy to read for the general public.