Each year, the National Press Photographers Association holds the "Best of Photojournalism" contest, a competition designed for photojournalists by photojournalists. Here is a selection of the 2013 winners.

Photojournalist of the Year, Larger Markets

RJ Sangosti/The Denver Post

Farmer Harry Strohauer walks in his corn fields that are damaged from thousands of grasshoppers and drought , Thursday July 19, 2012, near Lasalle, Colo.

Photojournalist of the Year, Smaller Markets

Dave Weathermax/The Herald

A crossbred heifer named Storm nuzzled up against Elizabeth Brinkman, 16, of Huntingburg, Ind., as she rested with her cattle at the Dubois County 4-H Fair.

International News Single, First Place

Manas Paran/AP Photo

A wild, full-grown leopard attacks a man after wandering into a residential neighborhood in Gauhati, in the northern state of Assam, India, Jan. 7, 2012. Later the leopard was tranquilized by wildlife official and taken to the state zoological park. The leopard ventured into a crowded area and injured four people before it was captured and caged.

General News Single, First Place

John Moore/Getty Images

A child gazes from a school bus as it passes by the St. Rose of Lima Catholic church while mourners gathered for a funeral service for shooting victim Jessica Rekos, 6, on Dec. 18, 2012 in Newtown, Conn. Four days after 20 children and six adults were killed at Sandy Hook Elementary School, most students in Newtown returned to school.

Sports Photojournalist of the Year

Patrick Smith/Freelance for Getty Images

Zach Gascho, No. 1005, of Catoctin looks down at his teammate Garrett Buckley, No. 1002 after he and other runners collapsed to the ground after finishing a grueling Boys' Class 2A Maryland MPSSAA Cross Country State Championships at Hereford High School on Nov. 10, 2012 in Parkton, Md. In what many call "The Toughest Three Miles in Cross Country," Buckley finished the race in 33rd place, while its team went on to finish in 26th overall.

Feature Single, First Place

Wally Skalij/Los Angeles Times

Traymond Harris, left, and Ryan Hudge play basketball as the shuttle Endeavor passes by on Crenshaw Ave. in Inglewood, Calif., before reaching it's final resting place.

More categories and images can be seen on the Best of Photojournalism site here: https://nppa.org/competitions/best-of-photojournalism