This book discusses the concepts and uses of thermal spraying including starting powder, spraying parameters, diagnostics, coating deposition, evolved microstructure and resulting properties complemented with several case studies to associate the learnings with applied concepts. The major parts of the instrumentation, the spraying gun, which is the fundamental aspect of different thermal spraying conditions are also discussed. Solved examples, numerical problems and descriptive questions are included for self-assessment at the end of every chapter. The book: Discusses all aspects from starting powder, spraying parameters, diagnostics and coating deposition; Explores schematics to highlight the conceptual notes; Includes multiple case studies from domains including aerospace, biomedical, manufacturing, wettability and others to highlight the practical application of thermally sprayed coatings; Covers classification of thermal spray techniques; and Contains solved example, numerical problems and descriptive questions for self-assessment. This book is aimed at senior undergraduates and graduates in materials science and engineering.