A short book about the Co bros career between 1984-2000. Each movie has a chapter with a plot summary, some making-of anecdotes and its reception. You do have to be pretty interested in the movies, Raising Az their 2nd movie, Fargo which made them big, cult pot movie Lebowski, etc. or it's unlikely to make sense or appeal to you. They went on to make a number more very good films in the 2000s after this book, but keep that independent flare with them, even now they're not working together and Ethan has a solo movie out this year.
Also there's hardly anything about their personal life so don't go looking for that, and some Sam Raimi hate.
"No doubt their gentle if bland suburban upbringing was a kind of blank canvas waiting to have a more interesting image cast upon it".