David A Kahn

David S. Kahn is Visiting Assistant Professor of Mathematics at the Center for Science and Math Education at Stony Brook University. For more than 20 years, he has taught mathematics to students at a variety of levels. He is the author of Cracking the AP Calculus AB & BC Exams, and his other Dover books are Attacking Trigonometry Problems and Attacking Problems in Logarithms and Exponential Functions.