This book was recommended by some of my college professors, and there is an entire chapter on proof by induction:
How to Prove It by Daniel Velleman
Velleman's book goes over many strategies of proof, induction being only one of them. I found another book which focuses exclusively on mathematical induction - as such, the review base is probably not as large, and I haven't heard about it before I searched for it, but it does have a few positive reviews on Amazon:
Handbook of Mathematical Induction by David Gunderson
I should add the disclaimer, however, that I have not personally read either of these books, so YMMV.