Book excerpt: Scientific and Technical Translation (STT) is a highly complex and knowledge-intensive field of translation and cognitive linguistics is a usage-based linguistic framework which provides powerful theoretical tools for modelling knowledge organisation and representation in discourse. This book explores the interface between scientific and technical translation studies and cognitive linguistics by discussing the epistemological, contextual, textual and cross-linguistic dimensions of scientific and technical translation from a cognitive linguistic perspective. Particular emphasis is placed on explicitation and implicitation as indicators of the interaction between text and context in STT. The corpusbased investigation of the two phenomena illustrates the complex knowledge requirements pertaining to scientific and technical translation and demonstrates the explanatory power of cognitive linguistics with regard to important textual and contextual aspects of STT.