A common text feature is

Table of contents, index, glossary, bolded words, pictures, captions, etc

feature helps readers Visual example of feature Inset A small photo, picture, or map inside or next to a larger picture; insets magnify a part of the larger picture Helps the reader visualize something in the text in both large and small scale, in combination with the larger picture

Explanation:

kenny´s more than 25 years of relevant public service. in the army for two decades, as official representative for four years, and now for the department of state, as ambassador. this career clearly demonstrates great capacities in the public sector.