This is an excellent book that is now showing its age and needs an update. It also lacks a CDROM with data sets which would make more explicit many of the points authors make. In addition, Drexel Burnham Lambert, like Banquo's ghost, is alluded to on nearly every other page, yet the authors here are hesitant to differentiating between high yield bonds (non-investment grade debt) and junk (anything issued by Michael Milken).
This work also glaringly lacks some crucial work by Paul Asquith on seasoned high yield bond defaults. Don't stop here.