This is the perfect book for coverage of classic debates in mainstream philosophy of logic. Its also the perfect source for exceptionally clear reviews of standard logical machinery (e.g., standard modal machinery, quantifier machinery, higher-order machinery, etc.). Very user-friendly, clear, and accurate on all of the topics that it covers, this is my new required text for classic debates in the philosophy of logic. Jc Beall, University of Notre Dame
John MacFarlane displays his usual lively and engaging writing style, and is neutral on controversial issues, giving the arguments employed by both sides. It is an excellent overview of some key topics in the field. Stewart Shapiro, Ohio State University