Randy,

I am not aware of any recent books that cover the subject on the "Techniques and Tactics" of fishing cripples/emergers. This is probably one of the better resources that covers some aspects of the topic:

http://www.amazon.com/Selective-Trout-Expanded-Carl-Richards/dp/1585740381

M
ost of what I have gleaned has come from articles and chapters from people like Dave Hughes, Jim Schollmeyer and Ted Leeson, Gary Borger, Dave Whitlock, Syl Nemes,Rene Harrop, Gary LaFontaine, Al Caucci, Bob Nastasi, Craig Matthews and others. If you run across THAT definitive work or if someone else knows of it - please share...


PT/TB