He received his doctorate in education at Teachers College, Columbia University in 2014, where he wrote and drew his dissertation entirely in comic book form. Titled Unflattening, it argues for the importance of visual thinking in teaching and learning, and was published by Harvard University Press in 2015. Unflattening received the 2016 American Publishers Awards for Professional and Scholarly Excellence (PROSE Award) in Humanities, the Lynd Ward Prize for best Graphic Novel of 2015, and was nominated for an Eisner Award for Best Scholarly/Academic work. To date, Unflattening has been translated into French, Korean, Portuguese, and Serbian (details here).