Résumé: This book is not a textbook of fuzzy logic which is a logic based on Zadeh's fuzzy sets. You should not look forward to readily learning fuzzy logics by reading this book. (Unfortunately, it means me.) For the contents of this book, please read the other reviews deeply. However, the subtile of this book and the fact that customers who bought this book also bought "Fuzzy Sets and Fuzzy Logic: Theory and Applications" on Amazon.com, are very misleading to customers.