How does Nicholas Dawidoff use imagery in The Catcher Was a Spy: The Mysterious Life of Moe Berg?

Examples of Imagery:

"When Linda McCarthy, the CIA museum curator, talks about Moe Berg, her face flushes sanguine and her conversation comes in breathless, staccato surges. Moe Berg is her passion."

"Shortstop Berg had always been too slow. Catchers, though, are notorious for trudging around the base paths, and Berg fit the essential criteria for the position: nimble reflexes, a strong arm, soft hands, and brains."