David Harel has been at the Weizmann Institute of Science in Israel since 1980. He was Department Head from 1989 to 1995, and was Dean of the Faculty of Mathematics and Computer Science between 1998 and 2004. He was also co-founder of I-Logix, Inc. He received his PhD from MIT in 1978, and has spent time at IBM Yorktown Heights, and sabbaticals at Carnegie-Mellon University, Cornell University, and the University of Edinburgh. In the past he worked mainly in theoretical computer science (logic, computability, automata, database theory), and he now works mainly on software and systems engineering and on modeling biological systems. He is the inventor of statecharts and co-inventor of live sequence charts, and co-designed Statemate, Rhapsody, the Play-Engine and PlayGo. Among his awards are the ACM Karlstrom Outstanding Educator Award (1992), the Israel Prize (2004), the ACM Software System Award (2007), the Emet Prize (2010), and three honorary degrees. He is a Fellow of the ACM, the IEEE and the AAAS, and a member of the Academia Europaea and the Israel Academy of Sciences. Yishai Feldman received his PhD from the Weizmann Institute of Science in 1986. He was a faculty member at Tel Aviv University and the Interdisciplinary Center in Herzliya. He is now at the IBM Research lab in Haifa, Israel, where he leads research on tools for program understanding and transformation.

From the reviews of the third edition: "This book should be on any short list for a central course in computer science. It is designed to provide a uniform background on which all students might draw. It has a good-humored, easy style, which would make any reader unwilling to close the book after opening it anywhere. All computer scientists should have this book. ... the bibliography is organized in a convenient chapter-by-chapter form, which makes the book useful for advanced work, and the exercises will help instructors identify capable students." (Harvey Cohn, ACM Computing Reviews, August, 2012) "This is a reprint of the 3rd edition on the occasion of the 25th year of the existence of the book; it is also intended to honor Alan Turing's 100th birthday. ... it is highly readable, even if one is largely acquainted with the field. It is very well written, containing many illustrative examples, suited also for the non-specialist." (Gunther Schmidt, Zentralblatt MATH, Vol. 1243, 2012)

• Preliminaries.- and Historical Review.- Algorithms and Data.- Programming Languages and Paradigms.- Methods and Analysis.- Algorithmic Methods.- The Correctness of Algorithms.- The Efficiency of Algorithms.- Limitations and Robustness.- Inefficiency and Intractability.- Noncomputability and Undecidability.- Algorithmic Universality and Its Robustness.- Relaxing the Rules.- Parallelism, Concurrency, and Alternative Models.- Probabilistic Algorithms.- Cryptography and Reliable Interaction.- The Bigger Picture.- Software Engineering.- Reactive Systems.- Algorithmics and Intelligence.

David Harel has been at the Weizmann Institute of Science in Israel since 1980. He was Department Head from 1989 to 1995, and was Dean of the Faculty of Mathematics and Computer Science between 1998 and 2004. He was also co-founder of I-Logix, Inc. He received his PhD from MIT in 1978, and has spent time at IBM Yorktown Heights, and sabbaticals at Carnegie-Mellon University, Cornell University, and the University of Edinburgh. In the past he worked mainly in theoretical computer science (logic, computability, automata, database theory), and he now works mainly on software and systems engineering and on modeling biological systems. He is the inventor of statecharts and co-inventor of live sequence charts, and co-designed Statemate, Rhapsody, the Play-Engine and PlayGo. Among his awards are the ACM Karlstrom Outstanding Educator Award (1992), the Israel Prize (2004), the ACM Software System Award (2007), the Emet Prize (2010), and three honorary degrees. He is a Fellow of the ACM, the IEEE and the AAAS, and a member of the Academia Europaea and the Israel Academy of Sciences. Yishai Feldman received his PhD from the Weizmann Institute of Science in 1986. He was a faculty member at Tel Aviv University and the Interdisciplinary Center in Herzliya. He is now at the IBM Research lab in Haifa, Israel, where he leads research on tools for program understanding and transformation.

From the reviews of the third edition: "This book should be on any short list for a central course in computer science. It is designed to provide a uniform background on which all students might draw. It has a good-humored, easy style, which would make any reader unwilling to close the book after opening it anywhere. All computer scientists should have this book. ... the bibliography is organized in a convenient chapter-by-chapter form, which makes the book useful for advanced work, and the exercises will help instructors identify capable students." (Harvey Cohn, ACM Computing Reviews, August, 2012) "This is a reprint of the 3rd edition on the occasion of the 25th year of the existence of the book; it is also intended to honor Alan Turing's 100th birthday. ... it is highly readable, even if one is largely acquainted with the field. It is very well written, containing many illustrative examples, suited also for the non-specialist." (Gunther Schmidt, Zentralblatt MATH, Vol. 1243, 2012)

• Preliminaries.- and Historical Review.- Algorithms and Data.- Programming Languages and Paradigms.- Methods and Analysis.- Algorithmic Methods.- The Correctness of Algorithms.- The Efficiency of Algorithms.- Limitations and Robustness.- Inefficiency and Intractability.- Noncomputability and Undecidability.- Algorithmic Universality and Its Robustness.- Relaxing the Rules.- Parallelism, Concurrency, and Alternative Models.- Probabilistic Algorithms.- Cryptography and Reliable Interaction.- The Bigger Picture.- Software Engineering.- Reactive Systems.- Algorithmics and Intelligence.

David Harel has been at the Weizmann Institute of Science in Israel since 1980. He was Department Head from 1989 to 1995, and was Dean of the Faculty of Mathematics and Computer Science between 1998 and 2004. He was also co-founder of I-Logix, Inc. He received his PhD from MIT in 1978, and has spent time at IBM Yorktown Heights, and sabbaticals at Carnegie-Mellon University, Cornell University, and the University of Edinburgh. In the past he worked mainly in theoretical computer science (logic, computability, automata, database theory), and he now works mainly on software and systems engineering and on modeling biological systems. He is the inventor of statecharts and co-inventor of live sequence charts, and co-designed Statemate, Rhapsody, the Play-Engine and PlayGo. Among his awards are the ACM Karlstrom Outstanding Educator Award (1992), the Israel Prize (2004), the ACM Software System Award (2007), the Emet Prize (2010), and three honorary degrees. He is a Fellow of the ACM, the IEEE and the AAAS, and a member of the Academia Europaea and the Israel Academy of Sciences. Yishai Feldman received his PhD from the Weizmann Institute of Science in 1986. He was a faculty member at Tel Aviv University and the Interdisciplinary Center in Herzliya. He is now at the IBM Research lab in Haifa, Israel, where he leads research on tools for program understanding and transformation.

From the reviews of the third edition: "This book should be on any short list for a central course in computer science. It is designed to provide a uniform background on which all students might draw. It has a good-humored, easy style, which would make any reader unwilling to close the book after opening it anywhere. All computer scientists should have this book. ... the bibliography is organized in a convenient chapter-by-chapter form, which makes the book useful for advanced work, and the exercises will help instructors identify capable students." (Harvey Cohn, ACM Computing Reviews, August, 2012) "This is a reprint of the 3rd edition on the occasion of the 25th year of the existence of the book; it is also intended to honor Alan Turing's 100th birthday. ... it is highly readable, even if one is largely acquainted with the field. It is very well written, containing many illustrative examples, suited also for the non-specialist." (Gunther Schmidt, Zentralblatt MATH, Vol. 1243, 2012)

• Preliminaries.- and Historical Review.- Algorithms and Data.- Programming Languages and Paradigms.- Methods and Analysis.- Algorithmic Methods.- The Correctness of Algorithms.- The Efficiency of Algorithms.- Limitations and Robustness.- Inefficiency and Intractability.- Noncomputability and Undecidability.- Algorithmic Universality and Its Robustness.- Relaxing the Rules.- Parallelism, Concurrency, and Alternative Models.- Probabilistic Algorithms.- Cryptography and Reliable Interaction.- The Bigger Picture.- Software Engineering.- Reactive Systems.- Algorithmics and Intelligence.