In this book, I apply the concept of intuitionistic fuzzy translations to intuitionistic fuzzy subalgebras, ideals, H-ideals in BCK/BCI-algebras. I also apply the concept of t-norm T to fuzzy structure of B-algebras and the concept of t-norm T and t-conorm S to intuitionistic fuzzy structure of B-algebras. I have introduced fuzzy dot structure of B-algebras and intuitionistic fuzzy structure of BG-algebras. I also introduced interval-valued intuitionistic fuzzy structure of BG-algebras.