A great book if you are looking for more information about the many diffrent planets. It offers almost everything you need to know about the noble houses holdings.

However at times someof the discriptions come accross as a little long winded. Also this only realy covers the noble houses and 2 planets controled by the empire. there is almost nothing about league or church worlds here.

But if you want a fully fleshed out world then tis is your book.

After you've purchased the "essential" books for the game (for me, that means rulebook, GM's screen), I would suggest taking a good, long look at this item.

As described, it gives you info on all of the Houses' planetary holdings; the planet's history, current situation, exports, etc. You also get names of notable personsages which populate their respective planets. All in all, one gets a pretty darn good amount of stuff by which to create games by.

Oh, and you also get listings of Imperial holdings as well as d20 info for animals, classes, and so on.

The down side to this work, if you could call it that, is that it does not cover the non House and Imperial planets (so perhaps the title of the book is a bit off), but I suppose Holistic couldn't just give out everything at one time.

My opinion: A pretty good buy.