This collection of papers presents research on language processing among second language learners and bilinguals. The nine papers include the following: (1) "The Bilingual's Language Modes" (Francois Grosjean); (2) "The Voicing Contrast in English and Spanish: The Relationship between Perception and Production" (Mary L. Zampini and Kerry P. Green); (3) "The Development of Conceptual Representation for Words in a Second Language" (Judith F. Kroll and Natasha Tokowicz); (4) "The Nature of the Bilingual Lexicon: Experiments with the Masked Priming Paradigm" (Kenneth I. Forster and Nan Jiang); (5) "Explaining Aspects of Code-Switching and Their Implications" (Carol Myers-Scotton and Janice L. Jake); (6) "Production of Verb Agreement in Monolingual, Bilingual and Second-Language Speakers" (Janet L. Nicol, Matthew Teller, and Delia Greth); (7) "A Theory of Syntactic Interference in the Bilingual" (Montserrat Sanz and Thomas G. Bever); (8) "Sentence Parsing in Fluent Spanish-English Bilinguals" (Paola E. Dussais); and (9) "Print as a Primary Source of English for Deaf Learners" (Samuel J. Supalla, Tina R. Wix, and Cecile McKee). (Contains approximately 360 references.) (SM)