Yanhong Annie Liu is a Professor of Computer Science at Stony Brook University. She received her BS from Peking University, MEng from Tsinghua University, and PhD from Cornell University. Her primary research has focused on general and systematic methods for program development, algorithm design, and problem solving. She has published in many top journals and conferences, served more than fifty conference chair or committee roles, and been awarded more than twenty research grants in her areas of expertise. She has taught more than twenty different courses in a wide range of Computer Science areas and presented close to a hundred research talks and invited talks at international conferences, universities, and research institutes. She received a State University of New York Chancellor's Award for Excellence in Scholarship and Creative Activities in 2010.

'As an experienced programmer and educator, I have to admit, I felt deep enjoyment while reading this book. It was a pleasant experience.' M. M. Tanik, Computing Reviews

• 1. Introduction; 2. Loops: incrementalize; 3. Sets: incrementalize and implement; 4. Recursion: iterate and incrementalize; 5. Rules: iterate, incrementalize, and implement; 6. Objects: incrementalize across module abstraction; 7. Conclusion.

Yanhong Annie Liu is a Professor of Computer Science at Stony Brook University. She received her BS from Peking University, MEng from Tsinghua University, and PhD from Cornell University. Her primary research has focused on general and systematic methods for program development, algorithm design, and problem solving. She has published in many top journals and conferences, served more than fifty conference chair or committee roles, and been awarded more than twenty research grants in her areas of expertise. She has taught more than twenty different courses in a wide range of Computer Science areas and presented close to a hundred research talks and invited talks at international conferences, universities, and research institutes. She received a State University of New York Chancellor's Award for Excellence in Scholarship and Creative Activities in 2010.

'As an experienced programmer and educator, I have to admit, I felt deep enjoyment while reading this book. It was a pleasant experience.' M. M. Tanik, Computing Reviews

• 1. Introduction; 2. Loops: incrementalize; 3. Sets: incrementalize and implement; 4. Recursion: iterate and incrementalize; 5. Rules: iterate, incrementalize, and implement; 6. Objects: incrementalize across module abstraction; 7. Conclusion.