Maria Litvin taught computer science and mathematics at Phillips Academy in Andover, Massachusetts, for over thirty years.  She has been an Advanced Placement Computer Science exam reader for over two decades and, as a consultant for The College Board, provides AP training for high school computer science teachers.  Prior to joining Phillips Academy, Maria taught computer science at Boston University. 

Maria co-authored several leading AP Computer Science textbooks, including C++ for You++ and Java Methods: Object-Oriented Programming and Data Structures.  She is also the co-author of Be Prepared for the AP Computer Science Exam in Java (now in its eighth edition), Coding in Python and Elements of Discrete Mathematics, and Bits and Chips: Computer Science in Questions and Puzzles for Aspiring Coders.  Since 2014, as a Code.org facilitator, Maria has trained more than three hundred New England elementary school teachers in introducing computer science to children in grades K-5.  She is the co-author of the Continental Mathematics League computer science contests for elementary and middle school students.