Is There a Temperature?  Conceptual Challenges at High Energy, Acceleration and Complexity, by Dr. Tamás Sándor Bíró, begins by asking the questions "Do we understand and can we explain in a unified framework the temperature of distant radiation sources, including event horizons, and that of the quark matter produced in high energy accelerator experiments? Or the astounding fluctuations on financial markets?"

The book reviews the concept of temperature from its beginnings through the evolution of classical thermodynamics and atomic statistical physics through contemporary models of high energy particle matter.  Based on the views of high energy nuclear physicists, it crosses over several traditional disciplines of university physics. Recent developments towards an abstract, general and thermodynamically consistent treatment of non-extensive systems are worked in.  Exercise problems and solutions help to deepen the reader's understanding into the details behind the theories.