I own several computing dictionaries because I began to collect them as a hobby, so long as the price was acceptable (low). The referenced, dictionary covering the computer industry in general, was the first purchased. The book is not full of fluff and filler. All subsequent computer related dictionaries had to meet or exceed it's standards. None has. This is an wonderful dictionary for the professional or novice computer user. You will begin to rely on it if you are either a casual or intense computer user, programmer, network user, preparing for a certification, or just "playing around" with a computer for grins or games. Without any hesitation I recommend this book. My only regret is that an update does not seem to be in the plans. The available edition, in and of itself, cannot keep up with such a dynamic industry and it is beginning to show its age.