Measurements of the composition of various bodies and particles in the solar system and the galaxy give us a remarkably accurate understanding of how the galaxy or the solar system formed. This workshop joined the various communities concerned with the composition of the Sun and its surroundings. It united workers from two very active space missions, the Solar and Heliospheric Observatory (SOHO) and the Advanced Composition Explorer (ACE). It was not limited to scientists analyzing and interpreting data gathered with instruments on these two spacecraft, but was open to the wider community. Topics include: solar and solar system abundances; coronal and solar wind composition; energetic particle composition; galactic composition; fractionation, acceleration, and transport processes; as well as applications and constraints on cosmochemistry.