The Impact of Binary Stars on Stellar Evolution

Introduction; 1. The zoo of binary stars Henri M. J. Boffin; 2. Statistics of binary and multiple stars M. Moe; 3. Gaia and LSST: their importance in binary star research L. Eyer, Nami Mowlavi, Isabelle Lecoeur-Taibi, Lorenzo Rimoldini, Berry Holl, Marc Audard, Simon Hodgkin, Dafydd W. Evans, Lukasz Wyrzykowsi, George Seabroke, Andrej Prsa, and Dimitri Pourbaix; 4. Population synthesis of binary stars R. G. Izzard and G. M. Halabi; 5. Low- and intermediate-mass star evolution: open problems M. Salaris; 6. The symbiotic stars U. Munari; 7. Binary post-AGB stars as tracers of stellar evolution H. van Winckel; 8. The importance of binarity in the formation and evolution of planetary nebulae D. Jones; 9. Massive star evolution: binaries as two single stars C. Georgy and S. Ekstroem; 10. Binarity at high masses H. Sana; 11. Luminous blue variables: their formation and instability in the context of binary interactions A. Mehner; 12. Type Ia supernovae: where are they coming from and where will they lead us? F. Patat and N. Hallakoun; 13. Binary interactions and gamma-ray bursts N. R. Tanvir; 14. Binaries as sources of gravitational waves G. Nelemans; 15. The impact of binaries on the stellar initial mass function P. Kroupa and T. Jerabkova; 16. The formation of binary stars: insights from theory and observation C. J. Clarke; 17. The Maxwell's demon of star clusters M. Mapelli; 18. Alternative stellar evolution pathways R. D. Mathieu and E. M. Leiner; 19. Clocks and scales: playing with the physics of blue stragglers F. R. Ferraro and B. Lanzoni; 20. Binaries at very low metallicity S. Lucatello; 21. Population and spectral synthesis: it doesn't work without binaries J. J. Eldridge and E. R. Stanway.