Since 2001 he has been a professor at Harvard Graduate School of Education. His research focuses on how children use their imaginations, first-hand experience, and trust in what they're told, to understand the world.
- The Development of Psychological Understanding, 1989.
- Perspectives on the Child's Theory of Mind, edited, 1991, with G.E. Butterworth, A.M. Leslie, et H.M. Wellman.
- Children's Understanding of Emotions 1989, avec C. Saarni.
- Developing Theories of Mind 1988 with J.W. Astington et D.R. Olson.
- The Work of the Imagination 2000.
- Imagining the Impossible: Magical, Scientific, and Religious Thinking in Children, co-editor, 2000, with K. S. Rosengren et C. N. Johnson.
- Trusting What You’re Told: How Children Learn from Others, 2015.
- In 1998 he was elected a Fellow of the British Academy.
- In 2005 he was awarded a Guggenheim Fellowship.
- In 2006 he was made a member of the Norwegian Academy of Science and Letters.
- In 2007 he was granted an honorary Doctorate from the University de Rennes.
- In 2009 he was elected a Fellow of the Association for Psychological Science.
- In 2014 he was awarded the American Psychological Association Eleanor Maccoby Book Award in developmental psychology.
- In 2015 he was elected a Fellow of the American Academy of Arts and Sciences.
- "Curriculum Vitae: Paul L. Harris" (PDF). harvard. Retrieved 4 August 2018.
- "Paul L. Harris to Join Faculty at Harvard Graduate School of Education". Harvard Graduate School of Education. 20 June 2001. Retrieved 4 August 2018.
- "Search Results | Harvard University Press".
- "British Academy Fellowship". 1998. Archived from the original on 21 May 2014. Retrieved 20 May 2014.
- List of Guggenheim Fellowships awarded in 2005
- Harris Elected to the Norwegian Academy of Arts and Sciences
- A Rennes, un moment historique et émouvant avec Jorge Semprun[permanent dead link]
- "APS Fellowship". 2009. Retrieved 20 May 2014.
- "Eleanor Maccoby Award" (PDF). APA. 2014. Retrieved 20 May 2014.
- "2015 Class list - American Academy of Arts and Sciences" (PDF). AAAS. 2015. Retrieved 29 May 2018.