The articles republished in this book survey and summarize recent research in helioseismology as well as studies of the interior structure, dynamics and magnetism of the solar interior that are being tested and refined using the helioseismic results.

Helioseismology has in the last few decades become a highly productive technique for studying the Sun's interior from observations of the vibrations of its surface. The vibrations are manifestations of resonant modes of the Sun that are continuously excited by turbulent motions in the Sun's convection zone, and a plethora of data have...