Book excerpt: Geophysics influences a wide range of subjects, from environmental studies to archaeology, palaeontology to counter-terrorism and law enforcement. 'Handbook of Geophysics and Archaeology' offers a comprehensive overview of geophysical techniques. The handbook focuses on applications and issues in archaeology but also provides a broad overview of the basics of geophysics. The Handbook examines a wide range of techniques: techniques associated with gravity, magnetometry, waves, electromagnetic induction, ground penetrating radar, geotomography, and electrical resistivity tomography. Each technique is explored in depth, with detailed case studies illustrating both technical applications and interpretations of data. The Handbook highlights the diverse range of geophysical methods required in the study of the Earth's subsurface.