THE STORY:
Well, some of it is simply artwork by the team that helped design Episode III, but a lot of the book is non-continuity or psuedo-continuity comic strips. A few of them are: 'Old Wounds', a classic what-if sort of story in which Darth Maul (having survived Episode I, and with new droid legs) tracks Obi-Wan down on Tatooine three years after 'Revenge of the Sith'; 'Entrenched', a story from the Battle of Hoth; 'Prototypes', which reveals the origins of the Clone Wars character Durge and his run-in with the Mandalorians; 'Deep Forest', the story of how the Wookiees enter the Clone Wars; and 'The Eyes Of Revolution', the backstory of Ep III's new villain General Grievous.
WHAT'S GOOD:
As can be expected, the artwork is mostly exceptional, particularly the truly sinister depiction of Sidious/Palpatine in 'Sithisis'. The stories mentioned above are all excellent for various reasons. 'Old Wounds' is brilliantly dynamic, for instance, whilst 'Entrenched' is wonderfully detailed. The single pieces of artwork interspaced between the stories are all great images, be they the catsuit-wearing beauties of the Imperial recruitment posters or the atmospheric 'Mygeeto Burns'.
WHAT'S BAD:
The Wat Tambor story is simply an exercise in psychadelic gibberish and lowers the quality of the entire book, in my opinion. Also, 'The Artist of Naboo', whilst having great artwork, left me completely bewildered as to what happened and what was the point. Finally, the fact that the stories in this book aren't necesarily in-continuity with the rest of the Star Wars saga may put some fans off.