TnNinjaGirl..Total Control by Lee Parks is the book you want for cornering. One of Park's 10 rules that he wants you to "engrain in the brain"
ha ha, I just made that up, is always keep the center of your body on the inside of the turn. Between the bike and the turn. His principles apply whether you are on a Harley or a Ninja of any kind. Look for it used at
http://www.alibris.com/
beowuff..Twist of the Wrist2 is Keith Code's best book, according to a review I saw. I don't have any of his books, yet. I'm leaning (no pun intended) toward Wrist2. The reviewer said Code didn't completely grasp what he was trying to convey to the reader in the original "Wrist", but really made up for it in Wrist2.
Of course, everyone should read "Proficient Motorcycling" 2nd Edition by Hough, before any other book!