Book excerpt: Atomic Absorption Spectrometry in Geology, Second Edition, aims to introduce geologists to the basic simplicity and applicability of atomic absorption spectrometry as it relates to geologic problems; to provide a summary of applications of atomic absorption to geology that are at scattered throughout the literature; and to encourage the accelerated application of atomic absorption spectrometry to geological problems. The book is organized into two parts. The first part, ""Theory and instrumentation,"" explains the theory of atomic absorption spectrophotometry; the operation of the atomic absorption spectrophotometer; and the types of interferences in atomic absorption spectrometry. The second part, ""Methods and applications,"" deals with applications of the atomic absorption method, including detection of the metal content of natural waters; metallic content of ores; and the analysis of trace elements in rocks and minerals. Also discussed are applications of the atomic absorption method in marine geochemistry and for isotopic abundance studies. The book includes some Appendices to the First Edition.