I just finished Chris Lynch’s Inexcusable–it’s a great book, gripping and chilling in a sort of creepy way (Keir Serafian, the main character, is a pathological liar of the sort Hayden Christensen portrays in the movie Shattered Glass).
Something Lynch does so well–and it’s something I need to work on–is giving only what the reader needs to construct the story. Lynch provides a few materials and the reader’s imagination then constructs the story.
One of the main plot points is that Keir Serafian cripples a player on the opposing football team. Keir (who narrates the story) never mentions what the specific injury is, but he does describe in detail what hitting the other player feels like:
When you hit a guy with all your being, hit him the way a car hits a moose, you would expect it to hurt both of you. But it doesn’t hurt the hitter, if the hitter has hit perfectly. It is a strange sensation, almost a magical sensation. The car takes a crumpling, and the moose takes a mangling.
But not the hitter. (17-18)

Lynch sustains this intensity for the rest of the passage, but Keir never describes what the injured player looks like–maybe because Keir never looks, maybe because Keir doesn’t want to offer that damning image.
Keir does describe the sound the injured player makes–”a kind of a grunt-cry voice forced up through fluid” (18)–and that detail alone is enough to suggest the horridness of the injury.
And maybe that’s the trick Lynch is using–suggestion. Give only what the reader needs to construct the feeling or the scene or the person.