Free Physics Books

The first free comprehensive textbook on quantum (and classical) field theory. The approach is pragmatic, rather than traditional or artistic: It includes practical techniques, such as the 1/N expansion (color ordering) and spacecone (spinor helicity), and diverse topics, such as supersymmetry and general relativity, as well as introductions to supergravity and strings. …

Superspace, or One thousand and one lessons in supersymmetry is available in pdf format. We beg our readers’ indulgence. We have tried to present a subject that we like, that we think is important. We have tried to present our insights, our tools and our knowledge. Along the way, some errors and misconceptions have without doubt slipped in. …

Written with the advanced undergraduate or graduate student in mind, Electromagnetic Field Theory is a textbook on the theory of electrodynamics, at roughly the same level as the well-known textbooks by Jackson and Panofsky&Phillips. …

“Introduction to String Field Theory” by Warren Siegel is available in several formats without charge. …

Physics Study Guide is a free online physics book from Wikibooks, the open-content textbooks collection. This guide is meant as a supplement to a year long freshman level physics course with a trigonometry prerequisite. Some ideas from calculus are included in the book but are not necessary to understand the content. …

“A Heat Transfer Textbook”, by 4th edition John H. Lienhard IV, Professor, University of Houston and John H. Lienhard V, Professor, Massachusetts Institute of TechnologyThis textbook is an introduction to heat and mass transfer oriented toward engineering students. …

“A 21st Century Frontier of Discovery: The Physics of the Universe” is a free pdf ebook from NASA. The Interagency Working Group on the Physics of the Universe (IWG) presents its conclusions on the actions necessary to implement the recommendations of Connecting Quarks with the Cosmos: Eleven Science Questions for the New Century, a 2002 report of the National Research Council. …

While usual presentations of physical theories emphasize the notion of physical quantity, this book shows that there is much to gain when introducing the notion of physical quality. Download it free of charge in pdf format. …

Consciousness, Physics, and the Holographic Paradigm by Alan T. Williams. The fundamental Nature of the world and universe we live in is a highly complex puzzle that to one degree or another has fascinated all peoples, in all places, at all times. …

With little mathematics, the text explores the most fascinating parts of mechanics, thermodynamics, special and general relativity, electrodynamics, quantum theory and modern attempts at unification. Written in English, its over 1200 pages are provided for students, teachers, and for anybody who is interested in the precise description of nature. …