This book investigates the complex interplay of social, psychological, and educational conditions that determine the success of second language acquisition. Bernard Spolsky, a prominent scholar in educational linguistics, synthesizes decades of research to propose a comprehensive preference model. He argues that language learning is not a monolithic process but a multifaceted phenomenon requiring clear goal setting and an understanding of the diverse variables influencing individual outcomes.

Experts recognize this work as a foundational text for understanding the theoretical underpinnings of language education policy and practice. Readers frequently note the academic density of the prose, which serves as a rigorous resource for researchers and graduate students in the field of applied linguistics.