Davis, T. (2015) Visual Design for Online Learning. San Francisco: Jossey-Bass.
This is not a new book, but it is well worth a read if it is new to you. It explores principles and practices of powerful learning design, sharing examples from a variety of disciplines all focused on design for student engagement. It is based on three bodies of knowledge: active learning, multiple intelligences, and universal design for learning. The emphasis is on visual aspects of design – getting past just text – and there is strong and growing evidence that visual elements have been shown to increase student participation, engagement, and success in an online course. Well worth reviewing again if you read it some time ago.