Teacher wellbeing is reflected in a positive attitude toward teaching that stems from supportive relationships with colleagues and students, the belief that one has the ability to teach effectively, and the feeling that one's personal and professional needs and expectations are met. This report looks at: (1) Why is teacher wellbeing important?; (2) How can you gain insights into teacher wellbeing?; (3) Tips for selecting and using tools to gain insight into teacher wellbeing; and (4) How can you support teacher wellbeing? [This infographic was created by REL Pacific in collaboration with the Cross-REL Working Group on Social and Emotional Learning and the Social and Behavioral Context for Academic Learning portfolio at the National Center for Education Research.]