The portraits in the book "Service" focus on U.S. military members and their families. From left are three members of the U.S. Army's 1st Stryker Brigade Combat Team in 2008: Command Sgt. Maj. Gabriel Cervantes, Col. Burt Thompson and interpreter John Mardo.
Cadet Kevin Kniery is photographed before graduating from the U.S. Military Academy at West Point.
For a training exercise in the Mojave Desert, Sgt. Luis Herrera played the role of an Iraqi farmer. In the summer, soldiers at California's Fort Irwin train in temperatures that average well over 100 degrees Fahrenheit.
Navy Seaman Jeremiah Lineberry holds a flag he lowered aboard the USS San Antonio prior to his first deployment in 2008.
Jakob McKay, son of Marine Sgt. John McKay, wears a military uniform in Camp Lejeune, North Carolina. His father was home after four tours of duty in Iraq.
Spc. Shirley Durden was part of the U.S. Army Soldier Show that visited bases across the world.
Spc. William Haywood was awarded the Purple Heart after his convoy was hit by an improvised explosive device in Iraq.
Hilarion Warren Joseph, a decorated veteran of the first Gulf War, poses with his son, Japeri. Japeri's wearing the jacket from his dad's Army uniform.
Matthis Chiroux was honorably discharged from the Army in 2007. He was a member of the group Iraq Veterans Against the War.
Army Sgt. Tim Johannsen lost both of his legs on his second tour of Iraq. He is embraced by his wife, Jacquelyne Kay.
Jay Wilson is photographed at an Air Force base on the day his son returned from a six-month deployment in Iraq.
Jessica Gray wears the shirt of her late husband, Army Staff Sgt. Yance T. Gray. He was killed in Iraq in 2007.