Models of Computation : An Introduction to Computability Theory

From the reviews:

"The focus of this relatively short book is on newer object-oriented and interaction-oriented models, including recent work in quantum computing and systems biology. ... the book is designed for advanced undergraduate and graduate students. ... Each chapter starts by clearly indicating what will be covered and ends with a series of exercises. ... the book as a whole is extremely well written. Definitions are clearly stated ... . Each model of computation is precisely defined, and the examples are clear and to the point." (K. Harrow, ACM Computing Reviews, September, 2009)

“It is a pleasure to see a book which takes a different approach to computer theory. ... This short book can be used for a one-term course ... . A valuable primer for students of programming languages. Summing Up: Highly recommended. Upper-division undergraduates and graduate students.” (P. Cull, Choice, Vol. 47 (3), November, 2009)