What you need to know right away: there is nothing new in this book. So if you have been collecting the MCU art books all along, there's no reason to buy this other than for the sake of completeness.
But if you are new to these books or did not purchase all of the books for each individual movie, then this compilation book will get you caught up at a more affordable price than buying each book separately. And I encourage you to buy it if you missed any of the early Phase One books that are now out of print.
Obviously, Marvel scheduled this around the release of "Age of Ultron". As a result, the book sticks to things that are related to the new film. The book is very character-driven: including Iron Man, Thor, Captain America, the Hulk, etc.
Things that are not important to the "Age of Ultron" film are not included in the book; for example, no content is included from "Guardians of the Galaxy"; nor is there any time spent on any of the villains from previous films. It should also be mentioned that there is no art from "Age of Ultron" in this book - the new film has it's own separate art book which you can find here.
Buy the book on Amazon.
*Republished with permission from MovieArtBook.com