The Science of Electric Guitars and Guitar Electronics considers the electric guitar and related accessories from a scientific point of view. The majority of books about electric guitars try to avoid using mathematics when describing the scientific phenomena related to the electric guitar. However, mathematics is an invaluable tool in the design processes of all areas of technology, even when designing musical instruments and audio electronics. This book presents simple mathematical methods for modelling the electric guitar as a signal source for electric circuits such as effect pedals and amplifiers. In addition to modelling the electronics inside the electric guitar, the principles of operation of some vintage guitar effects and amplifier circuits are explained and analysed using systematic methods of circuit analysis. The book is intended for everyone who is interested in the design and analysis of basic analogue electronics used in the electric guitar and guitar-related accessories. The presented topics cover the whole signal chain from the guitar strings to the loudspeaker. Therefore, a solid foundation is established for creating own designs in guitar electronics using basic components of analogue electronics.