It's a shame it's taken a fourth installment of the Indy series to get a book of this magnitude made but it's definitely worth the wait.
As a huge fan of this type of book and an even bigger fan of Indy, this publication is my idea of my heaven and each time I picked it up to read I never failed to be impressed. It's not absolutely perfect, there's a level of information provided that at times wanders into the realms of being pointless (minor crew injuries being the most noteworthy) but I'd much prefer a book with too MUCH information than one which leaves me wanting so much more, like many "Making-Of" efforts tend to.
Any book or documentary with Laurent Bouzerau's involvement is guaranteed to be extremely well-researched & highly professional & this Indy book is testament to this. It's beautiful to hold in your hands and if it was any larger it would take more than one person to turn it's pages as it's a heavy product as it is ! As you'd expect with any book licensed by Lucasfilm with Spielberg's involvement it also contains amazing images, many I've never seen before. The text is definitive and although there's a lot of stuff I already knew of, there's lots of new things that even the most knowledgable of Indy fans will learn.
If there was one thing I learnt from this book that I'd already suspected was the difference in opinion between Spielberg, Lucas & Ford on the latest installment. George Lucas insisted that it be a 1950's Alien B-Movie whilst Spielberg was reluctant to tread this path (especially some years back considering his involvement with ET, Close Encounters, etc). Harrison Ford makes no secret of the fact that the only part of the Indy series that he's not fond of is the supernatural, far-fetched stuff, in particular what he calls "little green men". As a big Star Wars fan I'll always hold George Lucas in high esteem but I firmly believe that where Spielberg still understands what an audience wants, Lucas has lost touch and reading of their difference of opinion here cements that opinion. I really enjoyed Crystal Skull but it would have been far more enjoyable without not just the idea but the scope and scale of the alien element of the story. I know Indy is a collaborative effort but it appears to me that eventually Spielberg & Ford wanted to make another installment so much that they almost "gave-in" to Lucas and went down along with his preferred idea.
To summarise, this book is totally absorbing. It's possibly the best book I've read of it's kind & each page was a joy to read. Awesome.