This book introduces an all new way of handling fuzzy sets considering it as a tool called fuzzy-valued variable. It uses real life examples to elaborate various facets of fuzzy-valued variable. The properties like fuzziness, continuity, regression analysis and information retrieval are explained in this book in the light of fuzzy-valued variable. Written in a lucid, easy-to read style, this book is intended for under-graduate as well as post-graduate students. Researchers in this field too would find the book extremely useful.