Mike Colletto, a lobbyist for the Professional Fire Fighters of Arizona who has been in a wheelchair for 32 years, dealt with depression until waking up one morning and deciding to look at the “positive side.”

Joe Kachuroi, a 42-year-old commercial land developer who has been volunteering for 20 years, including through Phoenix Volunteers for the past six months, writes pricing labels for donated books during an event at nonprofit organization Treasures4Teachers.

Cynthia Bowers’ experience with donating a kidney to save a dying child at Phoenix Children’s Hospital in 2008 drove her to establish her own volunteering organization.