Universal Design for Learning (UDL) emerged from the field of architectural design when federal legislation required universal access to buildings and other structures for individuals with disabilities. Architects began to design accessibility into buildings during their initial design stage rather than retrofitting standing structures. Using this architectural principle, UDL is a strategy to eliminate barriers that students may encounter to learning. Universal Design for Learning was a term coined by the Center for Accessing Special Technologies (CAST). UDL includes Universally Designed Instruction (UDI) as well as the concept of universally designed curriculum (UDC) and Universal Design in Assessment (UDA). Each of these concepts deals with the idea that education, in general, should be designed up front for access by all students, whether the curriculum, the instructional strategies, or the assessment. This document examines: (1) what UDL is and is not; (2) UDL & the link to the brain; (3) benefits of universal design; (4) UDL lessons learned; (5) implications for teachers; (6) implementation of UDL; and (7) UDL resources.