The Liber Chaotica is a background book for Warhammer that details the powers of Chaos and their followers. The book brings together the four books detailing the major Chaos Gods and one final volume for Chaos Undivided. Each volume has detailed information on that god and its daemons although they do include some information that can be applied to all the gods equally, such as daemonic. Scattered throughout the book are margin notes from the author, which can be difficult to read at times but are fun as they show his dissent into madness.
Volume One: The Liber Khorne describes the motives and followers of the Blood God. As well as detailing the daemons, weapons and champions of Khorne the volume also goes into length detailing the Marauder tribes of the Norse, the Kurgan and the Hung as well as information on generic Chaos monoliths and Khaine the God of Murder. The volume finishes with a section detailing the actions of Khorne within the Warhammer 40,000 universe which is written from the perspective of a citizen of the Warhammer Fantasy Battles World which gives interesting slant on things such as Abaddons Black Crusades, Khorne Berserkers and the war machines of chaos.
Volume Two: The Liber Slaanesh details the Lord of Pleasure the Chaos God Slaanesh. This volume is interesting dealing more with the cults of Pleasure rather than the armies of Slaanesh, as befits his role among the Chaos gods. The volume has details on pleasure cults, daemonic possession and artefacts dedicated to Slaanesh, as well as his connections with the Elves of the Warhammer World. The volume also features an interesting folk tale of two brothers, one dedicated to Khorne the other Slaanesh, which nicely depicts the perils of following the whims of the Dark Gods. Also of interest is an interview with a captured Slaaneshi cultist and the stories of three Champions of Slaanesh, Stnrkaar from the Storm of Chaos Campaign, Dechala the Denied One and Azazel the most favoured of the Daemon Princes of Slaanesh. Lastly the volume attempts to give information on Slaanesh within the Warhammer 40,000 Universe in much the same way as the Liber Khorne did but I feel that this is the weakest part of the volume as there can be some confusion of the information due to the differences between the back-story of the two game worlds, although I must admit it the writer does give it a good go but I feel fails in the end.
Volume Three: The Liber Nurgle is the one I was most interested in because the Plague God has always been my favourite Chaos Cod. Like the previous two volumes, this one details both the mortal and daemonic servants of Nurgle as well as having some very good discussions as to the nature of the Lord of Decay. As well as these god specific sections there is also an interesting chapter detailing the beastmen and another that tells the story of the Ravages of Gorthor, the most successful beastlord of recent times. Also worthy of note are the two folk tales and a chapter on the disease of Nurgle's Rot, both of which give a nice incite into the workings of the Plague Lord. As with the other volumes this part of the Liber Chaotica finishes with a few details of Nurgle from the Warhammer 40,000 Universe.
Volume Four: The Liber Tzeentch was the last volume to be released as an individual book and details the many servants, both mortal and daemonic, of the Great Conspirator. As well as this due to the fact that Tzeentch is the God of Magic, the volume also goes into some detail about the various forms of magic in the old world and has discussions on the nature of the soul. All of this makes this volume surprisingly interesting, even to those who don't particularly like Tzeentch himself.
Volume Five: The Liber Undivided deals mostly with the Everchosen of Chaos, the nature of divinity in the Warhammer world. The volume also details two champions of Undivided Mordek the Damned and Be'lakor the First Daemon Prince of Chaos. This final volume was never released as an independent book and is far shorter than the other volumes. I do think many of the generic Chaos sections from the previous volumes could have been included here rather than water down the god specific volumes but that is just my opinion.
Overall the Liber Chaotica Complete is a great book and although it does let itself down when it talks about the Warhammer 40,000 Universe, as a sourcebook for the Warhammer Fantasy Battles game it is great.
A truly epic tome, bringing together the four previously published volumes and including a previously un-published section pertaining to Chaos undivided, this is essential reading for any fan of the Warhammer world or the 40k universe. This book contains snippets from the original Slaves to Darkness, Lost and the Damned, a lot of the higher quality material that GW/BL has written on the subject of Chaos, and a pile of completely new stuff too. Packed with beautiful illustrations and superbly presented in the form of the mad rantings of a scribe driven insane by his task, I cannot recommend this book highly enough. Possibly more interesting to people seeking knowledge of the Warhammer world, it is never the less a worthy purchase for any fan of the written word, all in all lovely book. Well done, Black Library.