Mike Braxton wrote:
Go to the library. You can check out books on various styles from various authors to see which one you truly like before you purchase something that will be a waste of money.
I heartily agree with this. You need to have a clear idea of the type of explanation you are looking for as well as the kind of techniques you want more details on... and then choose the book.
Some books are wholly illustrated (such as Aikido and the Dyanmic Sphere), others are full of frame-by-frame photos (such as Best Aikido). YMMV.
I think the 'book reviews' section of this website covers the major books and could give you good leads.