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.

Here is a concise, comprehensive overview of Wilber's revolutionary thought and its application in today's world. In A Theory of Everything, Wilber uses clear, nontechnical language to present complex, cutting-edge theories that integrate the realms of body, mind, soul, and spirit. He then demonstrates how these theories and models can be applied to real-world problems in areas such as politics, medicine, business, education, and the environment.

In this audiobook, psychotherapist David Richo explores how we replay the past in our present-day relationships - and how we can free ourselves from this destructive pattern. We all have a tendency to transfer potent feelings, needs, expectations, and beliefs from childhood or from former relationships onto the people in our daily lives, whether they are our intimate partners, friends, or acquaintances.

Always exhausted from endless requests and guilty yeses? The Stop Them Theory pinpoints why constant availability drains your mind, body, and calendar, then shows how to break the cycle fast.

This detailed and persuasive study by the author of The Patton Papers was described by Patton's daughter Ruth as "an extraordinary book". It is widely considered the best biography ever written of the General, an American hero as compelling as he was complex.

From the New York Times bestselling author of Start With Why and Leaders Eat Last, a bold framework for leadership in today’s ever-changing world. How do we win a game that has no end? Finite games, like football or chess, have known players, fixed rules and a clear endpoint. The winners and...

In this best-selling classic, child psychiatrist and coauthor of The Whole Brain Child, Daniel J. Siegel and early childhood expert Mary Hartzell explore the extent to which our childhood experiences shape the way we parent. Illuminating important research in the field of interpersonal neurobiology, Siegel and Hartzell explain how the parent-child relationship directly affects brain development, and offer parents a step-by-step approach to forming a deeper understanding of their own life stories to help them raise compassionate and resilient children.

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.

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.

#1 NATIONAL BESTSELLER NEW YORK TIMES BESTSELLER “This riveting and beautifully written tale has profound implications for all of our lives, including the practice of medicine and mental health.” —Bessel van der Kolk, MD, #1 New York Times bestselling author of The Body Keeps the Score...

I Don’t Want to Be an Empath Anymore is a gift for the jaded empath searching for authenticity in spirituality, and spirituality in being authentic - something beyond the clichéd, positive affirmations that seem to invalidate our anger, sadness, and pain. When we feel broken - and when real damage has been done, it’s not always helpful to ignore our feelings and tell ourselves that we are perfect and whole.

Are you still waiting for your child to say the words "Mama" or "Dada" or string together a few words to form a sentence? As a parent, you want to ensure that your child receives the best start in life, which means learning the vital skills that will help them navigate through childhood and adolescence. But this goal is stifled when their development is delayed and they struggle to learn how to speak or use language as expected.

You've "let them" so long you've forgotten how to STOP THEM. Let them be late. Let them take advantage. Let them violate your boundaries while you smile and absorb the chaos. Let them treat your "no" as negotiable and your needs as optional.

Finally, a self-help book for people who are tired of being helped! Sarah Kellerman has zero qualifications to give you life advice. No PhD in psychology, no life coaching certification, and definitely no corner office success story. What she does have is a spectacular track record of following every piece of self-help advice ever published—and still ending up broke, exhausted, and living with her mother at thirty-five. But then something magical happened: she started saying "no" and fighting back. And her life actually got better.

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.

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.

How does science work? Does it tell us what the world is "really" like? What makes it different from other ways of understanding the universe? In Theory and Reality, Peter Godfrey-Smith addresses these questions by taking the listener on a grand tour of 100 years of debate about science. The result is a completely accessible introduction to the main themes of the philosophy of science.

In the years following her role as the lead author of the international best seller, Limits to Growth - the first book to show the consequences of unchecked growth on a finite planet - Donella Meadows remained a pioneer of environmental and social analysis until her untimely death in 2001. Thinking in Systems is a concise and crucial book offering insight for problem-solving on scales ranging from the personal to the global. Edited by the Sustainability Institute's Diana Wright, this essential primer brings systems thinking out of the realm of computers and equations and into the tangible world....

Running a business today means doing more with less—less time, less margin for error, and less room for inefficiency. The companies that survive and scale are not necessarily the largest. They are the most efficient. In How to Use A.I. in Business to Cut Costs & Save Time, Tafari Clayton reveals how modern entrepreneurs, managers, and small business owners can use artificial intelligence as a practical tool to streamline operations, reduce overhead, and reclaim hours each week. This is not a technical manual. It is a clear, actionable guide built for real business environments.

Parenting isn’t easy. Showing up is. Your greatest impact begins right where you are. Now the bestselling authors of The Whole-Brain Child and No-Drama Discipline explain what this means over the course of childhood. “There is parenting magic in this book.”—Michael Thompson, Ph.D...