Rating: 

I write a lot of programs and do a lot of consulting. Sometimes I don't touch anything beyond basic SQL statements for months on end. Being like most people in the IT field, we're very busy learning and keeping up with new technologies. Having this as a quick reference is great for leveraging your time and knowledge adaption.

For experienced IT people, a Pocket Guide may eliminate the need for buying any books (For those who don't read the online manuals or subscribe to knowledge services). Hand an experienced script writing a C++ pocket reference and in no time that person will be writing C++ programs.

These are great for beginners to experts.