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. -Blast 
I have the older 2nd ed. of the Pocket Ref and also the Handyman Ref. -- they come in handy in the construction industry and for home projects.  I also have the   
Canadian Wood Council Span Book for designing structures.  All good technologists/architects should have this at their side. BTW, the link is to the Americanized version of the book with both American/Canadian tree species instead of just Canadian.
It sits right beside my   
pocket sized dictionary and Roget's pocket thesaurus and the other staple =   
Collins Gem SAS Survival Guide    
 And since my close vision isn't what it used to be, I've got a credit card Fresnel lens lodged between the pages.