The main purpose of the book is to describe the two linguisticcultural phenomena arising from mass emigration of Mexicans to Los Angeles SpanishEnglish bilingualism and Spanglish. The main thesis of the research is the correlation between SpanishEnglish bilingualism and Spanglish. As public opinion deemed Spanglish as a blocker for linguistic advancement or degraded Spanish it is actually a method of enhancing the linguistic system. That is why not only does the research contest the use of such terms but it also argues that bilingualism is a much more compound and adequate term as well as an analytic framework for the study of bilingual productions. Spanglish should be understood as a form of bilingualism a hybrid enriching the linguistic system.