I have dedicated a good deal of my year reading this book while I wrote my thesis, so it's more than fair sparing some minutes and leaving a few words about the AWESOMENESS that Gilmore achieved with this book. As a newbie gamma-ray spectrometrist, I had relied upon my supervisors' expertise and a whole lot of trial and error along the way, until I could summon up enough confidence to speak aloud "I know spectrometry-fu". Then a friend came up with this book and, damn, I'm taking my words back. Knoll and L'Anunzziata may know their thing (and their books are certainly references in the field), but Gilmore's practical approach makes the read much more enjoyable. Every chapter contained new stuff to be known. He covers from hardcore statistics and the whys and becauses of specific software perks (I'm looking at you, Genie 2000 and your silly FWHM curve) to the electronic realms of the spectrometry system. This book has everything to become the only user manual a gamma-ray spectrometrist will ever need.