"The Heliosphere in the Local Interstellar Medium", the Proceedings of the First ISSI Workshop 6-10 November 1995, Bern, Switzerland, edited by R. von Steiger, R. Lallement, and M.A. Lee and published in 1996, was the first International Space Science Institute (ISSI) book in the Space Sciences Series. This book covers the knowledge gained in the subsequent 27 years that revolutionized our understanding of the interaction of the heliosphere with the very local interstellar medium (VLISM). Entirely new regions of space have been explored! The Voyagers both crossed the termination shock, passed through the heliosheath, crossed the heliopause, and entered the interstellar medium. New Horizons was launched with more modern instrumentation and explores low-latitude regions of the outer heliosphere. Energetic neutral atoms observed by IBEX and CASSINI allowed exploration of the heliosphere over the whole sky. The initial reconnaissance of the heliosphere and VLISM is complete with in situmeasurements, observations of energetic neutral atoms (ENAs), neutral VLISM H and He, UV emissions, and interstellar dust.

This book is a collection reviews from experts in the many aspects of this field that describe the current state of knowledge of the heliosphere’s interaction with the interstellar medium, puzzles yet to be solved, and future plans to continue these studies.

John D. Richardson

Dr. John D. Richardson specializes in heliophysics and planetary magnetospheres. He is PI of the Voyager plasma experiment, which made the first observations of the plasma at the termination shock, in the heliosheath, at the heliopause, and in the local interstellar medium. He is a co-I on the Parker solar probe SWEAPS experiment and on IMAP and has published over 300 papers on space physics topics.

Andrei Bykov

Andrei Bykov is chief researcher in high energy astrophysics at the Ioffe Institute, corresponding member of the Russian Academy of Sciences. His principal research interest are theory and observations of processes in astrophysical objects with extreme energy release ‐ supernovae, gamma‐ray bursts and clusters of galaxies. He is author and coauthor of over 270 scientific publications, a book, Turbulence, Current Sheets and Shocks in Cosmic Plasmas, and editor of seven books on high energyastrophysics.

Frederic Effenberger

Dr. Effenberger is an expert on energetic particle acceleration and transport in space plasmas and other astrophysical systems. He works both on the fluid and kinetic theory of plasmas and is particularly interested in the interaction of turbulent magnetic fields and cosmic ray particles.

Klaus Scherer

Dr. Scherer is an expert in modeling astrospheres. He is also interested in kinetic theory.

Veerle Jasmin Sterken

Rudolf von Steiger

Gary P. Zank