This is the 37th Dilbert cartoon book, which has full-colour cartoons between 3 May 2010 and 12 February 2011. The first of the book shows Scott Adams at his most cynical; imagine all the previous Dilbert cartoons at the next level of selfishness. Whilst very funny, these cartoons go very close to the line, and in one case oversteps it. When it gets closer to around Christmas, the overall mood relaxes, and it returns to the usual cynical level.
Overall, due to its unremitting intensity, this should be brought only by Dilbert veterans, and should not be the first Dilbert book you should buy. If you're looking for a good first choice, I can recommend Dilbert 2.0: 20 Years of Dilbert
, as it contains on DVD-ROM around 20 years worth of Dilbert.