The James Webb Space Telescope (JWST) has started a revolution in exoplanetary science. From studying in exquisite detail the chemical inventories and physical processes in gas giant exoplanets and the structure and chemical diversity of the enigmatic sub-Neptune population to even providing constraints on the atmospheric makeup of rocky exoplanets, the observatory is enabling cutting-edge science that is touching virtually every subarea in the field. In this review chapter, we showcase key highlights from exoplanet science being conducted with this state-of-the-art space observatory, which we believe is representative of the transformational science it is producing. One of the key takeaways from these pioneering JWST observations is how they are starting to reshape not only how we think, study, and interpret exoplanet observations but also how they are also reshaping our intuition about our very own Solar System planets.