This volume is an autobiography of Vladimir Prelog, eminent chemist and 1975 Nobel Laureate. After a long and rewarding career as lecturer and researcher, Prelog remains active in Zurich academic life. Known for his charm and wit, he relates his life and work in natural products chemistry and in conformational analysis and stereochemistry. Together with Cahn and Ingold, Prelog developed the R, S nomenclature for organic configuration