This book is designed to offer some special models such as flow shop and open shop of fuzzy set-based scheduling which are very important in the real world situation. It is not only beneficial for the Operations Research fraternity, Industrial units, semiconductors manufacturing, quality Control Centers but it is also useful for the students of computer science, industrial engineering, operations research as well as for common man. It covers basics like an introduction and classification of scheduling problems, methods of combinatorial optimization that are relevant for the solution procedures and the various important concepts of fuzzy set theory. In addition, it covers a variety of open shop models with different concepts in fuzzy environment and fuzzy flow shop problems including specially structured models that put emphasis to their relevance to practical situation. Hence, the work embedded in the book, helps the readers to formulate the real world problems easily and also directions for future research.