Concept, Image, and Symbol

"Langacker [...] has been one of the most productive and visible of the cognitive linguistic theorists, and one of the most influential in bringing linguistics as a discipline into line with the compelling work of other cognitive theorists in social science fields."Eve Sweetser and Patricia Hunt in: Semiotica "The most coherent and detailed body of research in cognitive linguistics." H. Stephen Straight and Mathew T. Davidson in:International Studies in Philosophy
"Langacker [...] has been one of the most productive and visible of the cognitive linguistic theorists, and one of the most influential in bringing linguistics as a discipline into line with the compelling work of other cognitive theorists in social science fields."
Eve Sweetser and Patricia Hunt in: Semiotica

"The most coherent and detailed body of research in cognitive linguistics."
H. Stephen Straight and Mathew T. Davidson in:International Studies in Philosophy