Development Theory

In her latest groundbreaking book, The Let Them Theory, Mel Robbins—New York Times bestselling author and one of the world's most respected experts on motivation, confidence, and mindset—teaches you how to stop wasting energy on what you can't control and start focusing on what truly matters: YOU. Your happiness. Your goals. Your life.

At its heart, polyvagal theory describes how the brain's unconscious sense of safety or danger impacts our emotions and behaviors. In this powerful book, pediatrician and neonatologist Marilyn R. Sanders and child psychiatrist George S. Thompson offer both a meditation on caregiving and a call to action. By attending to the lessons of polyvagal theory—that adult caregivers must be aware of children's unconscious processing of sensory information—the authors show how professionals can play a critical role in establishing a sense of safety even in the face of dangerous situations.

Enlightenment!—You may spend your whole life seeking it, but never find it. You may never search for it or even know that it’s possible, but reach it by accident. And you may live out your life ignorant of its existence, and die having never discovered your highest potential for happiness, self-mastery, and creative brilliance. The enlightened psychologist Abraham Maslow was the first to scientifically describe the fully enlightened person—which he called the “self-actualizing person.” Building on Maslow’s work through careful biographical study of the lives of self-actualizing ...

In a world that often celebrates the bold roar of the lion, what happens when you feel more like the quiet, overlooked lion or lioness—strong yet unrecognized, capable yet doubted? No One Prays for the Lion is Baylor Barbee’s blueprint to enhanced confidence, resilience, and the mindset required to lead a fulfilled, unstoppable life. Blending historical anecdotes, such as Julius Caesar’s remarkable display of self-worth in the face of adversity, with actionable insights, Barbee reveals that confidence isn’t a magical trait reserved for a lucky few—it’s a skill you can cultivate.

A Life-Changing Collection for Deep Healing, Self-Regulation, and Lasting Transformation Struggling with anxiety, stress, or emotional overwhelm? Imagine waking up tomorrow feeling calm, grounded, and in control, without years of therapy, endless coping strategies, or feeling stuck in survival mode. This comprehensive collection brings together two highly acclaimed books—The Somatic Therapy Handbook and The Polyvagal Theory Handbook—to provide you with a science-backed, practical path to healing from within.

In order to improve closeness and intimacy in all relationships, it is important to first understand the clear parallels between adult behavior and childhood experiences. Attachment Theory combines traditional teachings with knowledge of subconscious patterns to provide powerful tools for powerful change.

Dr. William Glasser offers a new psychology that, if practiced, could reverse our widespread inability to get along with one another, an inability that is the source of almost all unhappiness. For progress in human relationships, he explains that we must give up the punishing, relationship-destroying external control psychology. For example, if you are in an unhappy relationship right now, he proposes that one or both of you could be using external control psychology on the other. He goes further. And suggests that misery is always related to a current unsatisfying relationship.

Seeing What's Next is a framework for predicting industry winners and losers. Every day, individuals take action based on how they believe innovation will change industries. Yet these beliefs are largely based on guesswork and incomplete data, and can lead to costly errors in judgment. Internationally renowned innovation expert Clayton M. Christensen and his research partners, Scott D. Anthony and Erik A. Roth, present this guide for predicting outcomes in the evolution of any industry.

Attachment theory explores the different ways we develop connections with others. If you’re searching for a way to create stronger, healthier, and more authentic relationships with the people you love, The Attachment Theory Workbook can help. It’s your guide to understanding your own attachment style and exploring actionable exercises to improve honesty, intimacy, and communication with your partner, family, or close friends.

The Third Circle Theory is the theory that the founder of Secret Entourage created to explain how visionaries are made and billion dollar ideas born from nothing more than your observations. The theory which has proven to be the same for all the successful individuals who have not only found their purpose in life but have executed on their beliefs, and as a result established themselves as successful innovators, explorers, educators, and entrepreneurs is now clearly defined and will teach you how to live successfully.

Like many, you may be seeking concrete solutions to transform anxiety, trauma, and emotional turmoil into a harmonious and fulfilling life. The traditional methods you've tried might not have been enough to address your deep-rooted challenges. But imagine a world where you embrace a calmer mind and a rejuvenated spirit, all achieved through groundbreaking, science-backed approaches. That's now possible.

This is the little book that started a revolution, making women's voices heard, in their own right and with their own integrity, for virtually the first time in social scientific theorizing about women. Its impact was immediate and continues to this day, in the academic world and beyond. Translated into 16 languages, with more than 700,000 copies sold around the world, In a Different Voice has inspired new research, new educational initiatives, and political debate.

The Polyvagal Theory Workbook for Trauma offers evidence-based activities to help you heal the effects of trauma, rewire your nervous system, and return to a state of balance and calm. You'll begin by getting to know your nervous system, including an exploration of polyvagal theory and the vagus nerve. You'll also learn soothing, body-based practices to help you rewire your nervous response, including rhythmic movements (EMDR and tapping), conscious breathing, mindful movement, and more.

With Attachment Theory Explained, you can unlock the science behind your relationship patterns and learn how to create stronger, more meaningful connections. Based on groundbreaking research in adult attachment theory, this transformative book offers a practical guide to understanding your own attachment style and those of your partners, family, and friends.

Timothy R. Levine’s Duped: Truth-Default Theory and the Social Science of Lying and Deception recounts a decades-long program of empirical research that culminates in a new theory of deception-truth-default theory. This theory holds that the content of incoming communication is typically and uncritically accepted as true, and most of the time, this is good. Truth-default allows humans to function socially.

In Trauma and the Soul, Donald Kalsched continues the exploration he began in his first book, The Inner World of Trauma (1996)—this time going further into the mystical or spiritual moments that often occur around the intimacies of psychoanalytic work. Through extended clinical vignettes, including therapeutic dialogue and dreams, he shows how depth psychotherapy with trauma’s survivors can open both analytic partners to "another world" of non-ordinary reality in which daimonic powers reside, both light and dark.

Are you ready to break free? As someone who's traversed the treacherous terrain of attachment theory and boundary setting, I've felt the suffocating weight of insecurity and the fierce desire for autonomy. But through my own journey of suffering and growth, I've unearthed invaluable insights that have reshaped my relationships and my life. Gain a deep understanding of the underlying mechanisms shaping your relational dynamics.

What does it mean for someone to be an asshole? The answer is not obvious, despite the fact that we are often personally stuck dealing with people for whom there is no better name. Try as we might to avoid them, assholes are found everywhere - at work, at home, on the road, and in the public sphere. Encountering one causes great difficulty and personal strain, especially because we often cannot understand why exactly someone should be acting like that.

A philosophical map for the labyrinth of modern life, Become Who You Are reveals a radically new theory of mental health and “the opposite of depression.” Drawing from the insights of Friedrich Nietzsche, Marcus Aurelius, and Abraham Maslow, along with hundreds of scientific findings, each moment will challenge your intuitions and catalyze personal evolution. If you're ready to embark on a transformative journey of personal growth and self-actualization, this book will be your guide.

Whether you find yourself constantly seeking reassurance in love or pushing away from too much closeness, "Anxious Attachment and Avoidant Detachment" provides the tools to navigate the complexities of intimacy with grace and confidence. You'll learn to speak the language of love fluently, to listen with empathy, and to build the kind of relationships you've always deserved—one where love is not a source of angst but a foundation for growth.