The book "Spectroscopic Data of Steroid Glycosides" is an essential reference work that provides comprehensive spectroscopic, physical, and biological activity data for over 3,500 steroid glycosides. It contains detailed information about the structures and data of naturally occurring glycosides of steroids. The arrangement of the compounds is based on the structure of the aglycone and within their own class according to increasing molecular weight. This makes the work particularly useful for the structural elucidation of new natural products, especially glycosides. It is aimed at scientists and students interested in the biological and medical significance of steroid glycosides and serves as a practical reference for research and study in this field.