The Space Marines Codex is the guidebook for people who play the 40K game, but it is also a treasure trove of information about the Astartes themselves. Beautifully illustrated and full of information this is a must read for anyone interested in Warhammer 40k. Myself? I don't play the games but I am very fond of the novels and the lore.
I suppose my praise begs the question of why only 4 stars instead of 5? I was rather disappointed that this Codex didn't cover all the Astartes Legions. If you are unaware, in the wake of the Horus Heresy, Primarch Guilliman of the Ultramarines penned the Codex Astartes. This codex stipulates the organizational makeup and battle doctrine of the Astartes. It also mandated that no longer would there be Legions (numbering 100K) so that no one person could field the might of an entire Legion. Thus, post-Codex Astartes all the Legions were broken into Chapters (1K) and this is the current setup of the post-Heresy Space Marines. That being said, of the 18 Space Marine Legions 8 of them joined Horus-this still leaves us with 9 Loyalist legions. This codex, while quite detailed, seems to have skipped over the Dark Angels, the Space Wolves and the Blood Angels. Perhaps this is because they have their own codex? Not really sure but I would have liked to have those three included.
But this book does cover the Iron Hands, White Scars, Ultramarines, Imperial Fists, Salamanders and Raven Guard. Each section has a chapter history and details great campaigns, as well as giving us a background on their respective Primarchs. We are also treated to small sections about the successor chapters that were created from the old Legions. For example, not only do we learn about the Ultramarines but you will also learn a little about several of the successor chapters such as Genisis Chapter or the Novamarines.
Strangely two of the successor chapters of the Imperial Fists get a lengthier entry- the Crimson Fists and the Black Templars. Perhaps it is due to their storied reputations? I understand why the Black Templars had a lengthy section-as their chapter is not Codex compliant. The Black Templars do not use the tactical formations of the Codex and instead rely upon the teachings of their High Marshal (Chapter Master in other Codex chapters), they also view the Emperor as a god unlike the vast majority of the Astartes who revere him as their Father and the Lord of Mankind but do not ascribe him any particular divinity. Though in light of what I've read in the books, it might be that the Black Templars are more correct than they realize.
The rest of the book details the weapons and armaments of the Astartes and has detailed rules for anyone who plays the game. All in all? This was a very good book especially for someone who would like to know more about the lore of the Astartes.