This book explores the buckling behavior of thin-walled cylindrical shells, focusing on metal silos used for storing granular materials. It examines how geometric imperfections from manufacturing reduce critical buckling loads and discusses analytical and numerical methods, including finite element analysis, for stability assessment. Integrating theoretical insights with practical applications, this book serves as a valuable resource for engineers, researchers, and professionals involved in the design and analysis of thin walled cylindrical shells, particularly in storage structures.