📚 Selected Resources and Materials from our Team
Here is a small selection of resources and materials created by members of our team. We may continue to add more over time, so feel free to check back!
Chapters
⭐ Lewis, A. (2025). Intuitive sexuality: A sex-positive model for understanding and treating compulsive sexual behavior (pp. 65-87). In Prior, E. E. & Williams, D. J. (Eds.), Positive Sexuality: A Promising Future for Sex Research, Education, and Practice. Routledge.
⭐ Lewis, A. (2025). Sex addiction or out-of-control sexual behavior and polyamory, and how to tell the difference (2nd half of chapter by Lewis, pp. 207-215). in K. Labriola (Author), Love in Abundance: A Counselor’s Advice on Open Relationships (2nd ed.), Greenery Press.
⭐ Ludwig, V.U. (2020). Positive Sexualität: Unser Liebesleben aus der Sicht der Wissenschaft [Positive Sexuality: A scientific perspective on our love lives]. Helmut Fink & Rainer Rosenzweig (Eds.). Chapter in Hirn im Glück – Freude, Liebe, Hoffnung im Spiegel der Neurowissenschaft, Tagungsband zum Kortizes Symposium 2019.
Public Writing
The following article contains an interview with Dr. Vera Ludwig, covering some of the background of the current project.
The following article by Ari Lewis gives further insight into our approach.
Videos and Podcasts
Ari Lewis has appeared on two recent episodes of the Better Sex Podcast, included below.
You can also find these two episodes in the form of podcasts, such as on Apple Podcasts, Spotify, etc.
Vera has been interviewing people on the topic of sexuality and intimacy since 2017, gathering different perspectives. You can find her interviews and some videos on the science of positive sexuality on her YouTube channel. A few example videos are included below.
You can subscribe to Vera’s channel here:
The following podcast episodes on the Psychology Podcast by Scott Barry Kaufman, one of our team members, covered various aspects of sexuality. If they are not displayed correctly on your phone, look for episodes 19, 142, and 157.
Some external links to check out
Resources for people struggling with their sexuality
The following links offer lists of various support resources (currently restricted to the US), including some specific to students and employees of the University of Pennsylvania, as well as external or national resources available to all.
If you find yourself in need of support, we encourage you to reach out to one of the resources, or to another organization appropriate to your situation.
You can also look for a therapist on www.psychologytoday.com/us/therapists/ while filtering for therapists specialized in sexuality. In emergency situations, you can reach out to the National Suicide Prevention Lifeline (provides 24/7, free and confidential support, phone: 1-800-273-TALK (8255), online chat: suicidepreventionlifeline.org) or the Crisis Text Line (offers free, 24/7 support for those in crisis, connecting people with crisis counselors; text “HELLO” to 741741, crisistextline.org).
💫 Stay tuned for more materials and resources to be added to this page.