Easy to Medium Sudoku puzzles to sharpen and relax your mind.

80 Sudoku puzzles to entertain and develop your mind.

A collection of moderate to intermediate Sudoku puzzles.

A collection of easy to medium level Sudoku puzzles.

Further, they support better learning and teaching at universities in the context of internationalization.The book will above all benefit undergraduate students in ESL/EFL teacher training programs, and post-graduate research students in applied linguistics, language education and second language teacher education.