Scientific library — psychology of human relationships guides
Relationship psychology

Scientific Guides in English

In-depth syntheses based on international research, accessible to everyone.

ENAttachment

Attachment Theory: Bowlby's Legacy on Adult Relationships

John Bowlby's attachment theory — how our earliest relational experiences shape our adult romantic relationships. A foundational guide for understanding why we love the way we do.

🔬 John Bowlby

ENCommunication

Couple Communication: What 40 Years of Research Reveals

Four decades of direct couple observation by John Gottman and his teams have precisely identified the communication behaviors that predict long-term relationship satisfaction — and those that predict breakup.

🔬 John Gottman

ENLoneliness

Loneliness and Social Connection: What Science Reveals

Loneliness is not merely emotional discomfort — it is a biological alarm signal with measurable effects on physical health. John Cacioppo's work revolutionized our understanding of this fundamental human need for connection.

🔬 John Cacioppo

ENLove

The 5 Love Languages by Gary Chapman: Theory and Practical Cases

In 1992, marriage counselor Gary Chapman proposed that everyone expresses and receives love through one dominant 'language' among five. An idea that became immensely popular — and that research nuances.

🔬 Gary Chapman

ENLove

Love Styles: John Alan Lee's Typology and Sternberg's Triangle

In 1973, sociologist John Alan Lee identified 6 distinct love styles, from passionate love to altruistic love. Understanding your style — and your partner's — is a key to improving your relationship.

🔬 John Alan Lee

ENSatisfaction

Relationship Satisfaction: Lessons from Scientific Research

Relationship satisfaction is one of the most studied topics in relationship psychology. Why do some couples maintain lasting happiness while others fade? The answer is less mysterious than one might think.

🔬 John Gottman

ENSatisfaction

Relationship Satisfaction: A Science-Based Guide for Couples

Relationship satisfaction is not a fixed trait. Decades of research show which habits, skills, and expectations protect couples from decline and which accelerate it.

🔬 John Gottman

ENAttachment

Attachment Theory in Practice: Secure, Anxious and Avoidant Styles

A practical guide to applying attachment theory in adult romantic relationships: understanding secure, anxious and avoidant patterns, and the pathways toward change.

🔬 John Bowlby

ENWellbeing

The Cacioppo Effect: Loneliness and Romantic Relationships

Loneliness is not a character flaw or a social failure. John Cacioppo's research shows it is a biological signal that mobilizes us to seek connection, with measurable consequences for health and relationships.

🔬 John Cacioppo