This book focuses on understanding the stellar populations of massive star clusters and aims to investigate the origin, evolution and properties of binary systems, their collision products, as well as the general characteristics (e.g. ages, metal content) of stellar population(s) in star clusters. It introduces the basic background knowledge of various stellar populations in star clusters as well as their formation, interaction and evolution and offers high impact observational results on our understanding of the formation and evolution mode of star clusters. Based on these discoveries, this book proposes a series of future projects that can shed light on these topics. The research introduced in this book reveals key features of star clusters formation and by extension how all stars formed in our universe.

Chengyuan Li obtained his Ph.D degree in astronomy and astrophysics from the Department of Astronomy of Peking University in July 2015. His research focuses on stellar populations in star clusters, which involves the subjects of binaries, blue straggler stars and star formations in star clusters. He subsequently won a project research fellow in Purple Mountain Observatory of Chinese Academy of Sciences. In Oct. 2015, he won the Macquarie Research Fellowship at Macquarie University, Australia.

Star Formation, Evolution and Stellar Populations in Star Clusters Stellar Evolution and Populations.- Researches of Stellar Populations in Star Clusters.- Researches on Stellar Populations in Massive Star Clusters Binary Fraction in Young Massive Star Clusters.- The Formation and Evolution of Blue Straggler Stars in Globular Cluster.- Multiple Stellar Populations in the Giant Branches of Galactic Globular Clusters.- Do Intermediate-age Star Clusters have Extended Star Formation Histories?.- Not-so-simple Stellar Populations in Massive Star Clusters, Where Do We Stand? Lessons Learned from this Thesis.