The Universal Design for Learning (UDL) Professional Development Series consists of five online courses, developed and intended to be completed in sequential order. It is recommended that you begin the series with Course 1, which provides a basic overview of UDL. Course 2 provides you an in-depth understanding of the UDL framework. Courses 3–5 dive into each of the UDL principles and checkpoints. Select each of the headings for a more in-depth description of each course.