This book gives physics, chemistry, engineering and materials science students insights in the basics of energy and energy technology. It was developed along a successful course for advanced bachelor or graduate students and is written in an easy-reading, didactic style. The problems and solutions at the end of each chapter are an ideal training for exams and make self-study easy. Topics covered include: thermodynamics, energy from fossil and nuclear fuels and from renewables, energy transport, storage and fuel cells.