Finished reading Koretoshi Maruyama's book, Aikido with Ki.
Here I thought John Stevens book, The Secrets of Aikido, was bad. This one is competing for that title.
Again, all my thoughts are towards aiki...do. Take them with a grain of salt if you're doing aikidoTM.
The bad: You'll get a lot more detailed information on AikiWeb about the "ki" in "aiki". Not much (some) of any kind of historical information either. Goes over Tohei's four principles, but a lot is left out and you won't get anywhere near as good as Tohei by reading this book. Save your money.
The good: Hey, it has detailed descriptions of what to physically do for some techniques. If you are new and want something to help you remember where your foot goes and what your hands are doing, yeah, this will get you by.
Overall, I'd skip this book. Worthless to anyone wanting to find deeper meaning to aiki in aiki...do.