Yes I would definitely recommend Eric's book for the deep insights it contains, but it may not be the easiest to read, especially for non-native english readers as his english is quite formal. Scott Millet's book is also very good. For an introduction to DDD you can have a look at a conference video here my friend Thomas Pierrain and I made : http://videos.ncrafts.io/video/167722768 (shameless plug :-))