Andrew Radford (3 July 1945 – 16 December 2024) was a British linguist known for his work in syntax and child language acquisition. His first important contribution to the field was his 1977 book on Italian syntax, a revised version of his doctoral thesis. He achieved international recognition in 1981 for his book Transformational Syntax, which sold over 30,000 copies and was the standard introduction to Chomsky's Government and Binding Theory for many years; and this was followed by an introduction to transformational grammar in 1988, which sold over 70,000. He has since published several books on syntax within the framework of generative grammar and the Minimalist Program of Noam Chomsky, a number of which have appeared in the series Cambridge Textbooks in Linguistics. In the 1990s, Radford was a pioneer of the maturation-based structure building model of child language, and the acquisition of functional categories in early child English within the principles and parameters framework, in which children are seen as gradually building up more and more complex structures, with lexical categories (like noun and verb) being acquired before functional-syntactic categories (like determiner and complementiser); this research resulted in the publication of a monograph titled Syntactic Theory and the Acquisition of English Syntax in 1990, and numerous articles on the acquisition of syntax by monolingual, bilingual, and language-disordered children. Radford began researching the syntax of colloquial English in 2010, using data recorded from unscripted radio and TV broadcasts. On this topic, he produced a research monograph and various articles, and pursued further research on syntax of relative clauses in colloquial English. From January 2014 until the time of his death, Radford was an Emeritus Professor of the Department of Language and Linguistics at the University of Essex. Source: Wikipedia (en)