I have an ancient copy and also a newer version, the first was handed over to me by one of Polykarp Kusch's associates prior to his retirement from UTD. I have since read this book, as it was recommended reading for my thermodynamics class as well. I find it to be highly useful for the Fermi Dirac versus Bose-Einstein, Stirling's theorem and Nernst theorems. Also a mighty useful introduction to EM. Also I used it during my Masters for some of my thermo and solid state classes too. I'm glad I didn't have to take a 6th solid state class during my PhD, since by the time I finished mastering Solid State Physics in grad school, I was able to undergo examination by a graduate professor over the Mermin classic and was able to derive the equations because of reading little books like this one. Which was a good thing, cause I had a mini physics qualifier over lunch, and was asked to derive the Fermi Dirac and Bose Einstein equations and had to give a good explanation for them. I was then tested over all of both Kittel and Ashcroft & Mermin, and spent a good hour discussing both, 30 minutes of Kittel, and 30 minutes of Mermin, chapter by chapter. Other graduate students cringed when they heard that, as did some of the fellow professors. I'm glad I had an outstanding undergraduate education, where this kind of thing was to be expected.