The recurrent interest in the study of the contemporary scientific and technical texts is determined by the changes in the nature of these texts and the range of rhetorical functions they perform. Apart from purely informative and persuasive functions, many special texts also fulfil expressive function in an attempt to attract attention to the facts and evidence presented. New information is often brought into focus using various rhetorical devices, such as verbal metaphor, personification, epithet, and allusion. The application of stylistically marked vocabulary within the special text allows focusing the attention of the readers on a particular information cluster, ensuring that the new information is not disregarded or missed. The issue of acceptability of the more expressive ways of communicating information in the special texts is still open to discussion, but despite the differences in opinions, this tendency is ongoing and is not likely to revert in the nearest future.