"The solar atmosphere above the photosphere, the Sun's surface layers, is heated up to Mega-kelvin temperatures and raised to a high level of dynamic activity through processes involving a pervading magnetic field. This book is concerned with one of the most important means of understanding the solar atmosphere, its ultraviolet and soft X-ray emission. The ultraviolet and X-ray spectra of the Sun's atmosphere provide valuable information about its nature - the heat and density of its various parts, its dynamics, and its chemical composition." "Spacecraft instrumentation from Skylab, the P78-1 mission, SolarMax, Yohkoh, Soho, Trace, and Hinode are described. With introductions to atomic physics and the diagnostic techniques used by solar spectroscopists, a list of emission lines in the ultraviolet and soft X-ray region, and a glossary of terms, this book is an ideal reference for graduate students and researchers in astrophysics and solar physics."--Jacket.