This book invites you to observe the most spectacular, high-energy events taking place in the cosmos. Even though these events may occur hundreds, thousands, millions or even billions of light-years away, you can witness them using the naked eye, binoculars, or telescopes. The book covers cataclysmic variable stars (CV's), novae and dwarf novae, recurrent novae, solar flares, flare stars and prominences as well as the more distant supernovae, hypernovae, blazars, quasars, and gamma ray bursters. There are also sections on photometry, equipment, and software as well as many valuable observing tips based on the author's own experience viewing these events.