I would recommend the book, Introduction to Logic by Irving M Copi and others. It has a large number of interesting exercises too. Another choice would be the

I would recommend the book, Introduction to Logic by Irving M Copi and others. It has a large number of interesting exercises too. Another choice would be the book, 'The Trivium: The Liberal Arts of Logic, Grammar, and Rhetoric : Understanding the Nature and Function of Language' by Sister Miriam Joseph.