This book aims to provide a considerably detailed, integrated and methodologically grounded study of at within the cognitive framework. Assuming the non-arbitrary quality of the mental lexicon and highly creative nature of the human conceptual system, it is posited that each preposition has a primary sense which interacts with a highly constrained set of cognitive principles to derive a set of additional distinct senses, forming a motivated semantic network. The present analysis also reveals that at is remarkably coherent in its metaphoric and metonymic manifestations in that...