'… excellent chapters … based on both captive and field experiments.' Craig B. Stanford, The Quarterly Review of Biology
'Recommended for any researcher interested in the study of great ape cognition, and all college and university libraries.' N. Krusko, Choice
'Reaching into Thought is a useful reference, particularly for readers with a background in the behaviour of apes and/or in the theoretical issues surrounding comparative investigations of intelligence … nicely produced, with many good illustrations.' Christine M. Fillion, and Dorothy M. Fragaszy, University of Georgia, Athens
'… this fine book should be considered mandatory reading for all cognitive archaeologists.' Kathleen Gibson, Cambridge Archaeological Journal
'In addition to containing some truly wonderful individual articles, taken as a whole, it serves an important role by accurately reflecting the present status of cognitive primatology as it pertains to Great Apes.' Debbie Custance, Primate Eye
' … the book taps all the right channels of current interest, every evolutionary cognitive science should buy it and maybe teach a seminar using it.' W. C. McGrew