I don't think either of those books is very good, so try to borrow before you buy. The best of a bad bunch is still bad. I never look at Fabozzi's book these d

I don't think either of those books is very good, so try to borrow before you buy. The best of a bad bunch is still bad. I never look at Fabozzi's book these days, but I still break out the Guide to MBS for its appendix on mortgage amortization formulas. That's a pretty weak recommendation.