Gottman

Psychoeducation:

 * The Seven Principles for Making Marriage Work: A Practical Guide from the Country's Foremost Relationship Expert (book) - https://amzn.to/3dBS56N

Apps:
Gottman Card Decks
 * iOS - https://apps.apple.com/us/app/gottman-card-decks/id1292398843
 * Android - https://play.google.com/store/apps/details?id=com.carddecks

Social media:

 * Gottman: https://www.instagram.com/gottmaninstitute/