Does anyone here use a pocket reference book such as the   
pocket ref book or would you recormmend a different book?   
I like that book enough to have a copies at home, at work, and in my truck. I also keep it's offshoot,  
Handyman Pocket Ref, in my toolbelt. I also keep a copy of   
JJ Keller Hazardous Materials Compliance Pocket Guide in my truck, but only because I have to deal with those regulations at work and so I get free copies.
-Blast