Body appreciation entails accepting, holding favorable opinions toward, and respecting the body, while also rejecting media-promoted appearance ideals as the only form of human beauty. As the central component of positive body image, body appreciation has received much empirical and clinical attention. Indeed, body appreciation helped shape both the foundation and development of the positive body image literature, as its measurement preceded qualitative studies investigating the positive body image construct. Avalos, Tylka, and Wood-Barcalow developed the original Body Appreciation Scale (BAS) in 2005, which was updated to the BAS-2 by Tylka and Wood-Barcalow in 2015. In this chapter, we define body appreciation, discuss its development, describe how it has been assessed (in adults, children, in those with autism, and as a trait and a state), and trace its path and consistent presence within the broader positive body image and embodiment literature. We also discuss body appreciation’s presence as a key construct within yoga research. We conclude the chapter with ideas for how body appreciation can facilitate additional insight into the connection between yoga and embodiment.