Volume 68 of Reviews in Mineralogy and Geochemistry reviews Oxygen in the Solar System, an element that is so critically important in so many ways to planetary science. The book is based on three open workshops:
Oxygen in the Terrestrial Planets, held in Santa Fe, NM July 20-23, 2004;
Oxygen in Asteroids and Meteorites, held in Flagstaff, AZ June 2-3, 2005;
and Oxygen in Earliest Solar System Materials and Processes (and including the outer planets and comets), held in Gatlinburg, TN September 19-22, 2005.
As a consequence of the cross-cutting approach, the final book spans a wide range of fields relating to oxygen, from the stellar nucleosynthesis of oxygen, to its occurrence in the interstellar medium, to the oxidation and isotopic record preserved in 4.56 Ga grains formed at the Solar System's birth, to its abundance and speciation in planets large and small, to its role in the petrologic and physical evolution of the terrestrial planets.

**Contents:**
Introduction
Oxygen isotopes in the early Solar System - A historical perspective
Abundance, notation, and fractionation of light stable isotopes
Nucleosynthesis and chemical evolution of oxygen
Oxygen in the interstellar medium
Oxygen in the Sun
Redox conditions in the solar nebula: observational, experimental, and theoretical constraints
Oxygen isotopes of chondritic components
Mass-independent oxygen isotope variation in the solar nebula
Oxygen and other volatiles in the giant planets and their satellites
Oxygen in comets and interplanetary dust particles
Oxygen and asteroids
Oxygen isotopes in asteroidal materials
Oxygen isotopic composition and chemical correlations in meteorites and the terrestrial planets
Record of low-temperature alteration in asteroids
The oxygen cycle of the terrestrial planets: insights into the processing and history of oxygen in surface environments
Redox conditions on small bodies, the Moon and Mars
Terrestrial oxygen isotope variations and their implications for planetary lithospheres
Basalts as probes of planetary interior redox state
Rheological consequences of redox state