books.google.com - There are many self-help math books available, but none are quite like this one. Math Is Easy, So Easy, first separates math topics into those which are essential and nonessential. The struggling math student (and parent of a struggling math student) must be able to focus on the math topics which will...http://books.google.com/books/about/Math_Is_Easy_So_Easy_Calculus_First_Edit.html?id=SNtVNzjP4UMC&q=lim+lim&utm_source=gb-gplus-shareMath Is Easy So Easy, Calculus, First Edition