Happy #InternationalVolunteerDay! Volunteers serve as leaders, educators and mentors. They give lectures to Optica Student Chapters, educate policymakers and travel worldwide to engage with their communities. Stay tuned to our social media channels today as we highlight some of our dedicated community members and share opportunities for you to get involved. Find out more in our bio* #Volunteer #Careers #Students Pictured: Jonathan Liu, General Chair of #OpticaBiophotonics26 in the lab; Optica Ambassador and Pivoting Fellow Fabian Ruf during a guest lecture at the University of Liberia, Optica Publishing Group volunteers during Meet the Editors events.