Development Theory

Understanding Jean Piaget: A Complete Guide to Cognitive Development, Learning Stages, and Educational Theory is your definitive introduction to one of the most influential psychologists of the 20th century. Whether you're a student, educator, parent, or lifelong learner, this accessible guide breaks down Piaget's revolutionary theory of cognitive development in a way that’s clear, engaging, and deeply informative. Explore Piaget’s four stages of cognitive growth—Sensorimotor, Preoperational, Concrete Operational, and Formal Operational—and gain insight into how children think, ...

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.

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....

What is the difference between living and waiting to die? What is it that makes life worth living? Finding the Meaning and Beauty Life Cannot Measure is not just a title. It is a lens. Rob Abel, award winning author of the Amazon #1 best seller "This is WHY Understanding Human Behavior" presents his second published work "Live Between the Lines Theory.

Erik Erikson's Stages of Psychosocial Development: A Complete Guide to Understanding and Applying His Major Ideas in Everyday Life is your essential roadmap to mastering one of the most influential psychological theories of the 20th century. Whether you're a psychology student, educator, therapist, parent, or simply someone interested in personal growth, this comprehensive and reader-friendly guide helps you understand and apply Erikson’s 8 stages of psychosocial development in everyday life. Explore how trust, autonomy, identity, intimacy, and legacy shape who we become—from infancy to...

What if peace of mind didn't depend on getting your life in order... but on how you look at it? Your mind is racing at a million miles an hour. You overthink a conversation, a bill, or a message left on read with two blue checkmarks and no reply. You snap over a comment and later regret it. You compare yourself to others, feel overwhelmed, and carry the weight of a loss you don't know how to let go of. And deep down, you just want one thing: to stop feeling so overwhelmed by everything. Two thousand years ago, three men as vastly different as an emperor, a wealthy advisor, and a freed slave...

When Ava Locke was five years old, she began a journey to join the Benefactors—the leaders of the magical continent of Magus. Twelve years later, she unwittingly started down the road to betray them.

In "Psychometrics: Understanding and Applying Psychological Measurement," Ali Muattar provides a comprehensive guide to the principles, practices, and applications of psychometrics. This second edition offers updated research, practical insights, and real-world examples that empower researchers, educators, and practitioners to develop and use valid and reliable assessment tools. Ali delves into the mysteries of psychological measurement, offering readers a deep understanding of how psychometric principles shape the construction, administration, and interpretation of tests and measures. ...

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...

He gave us the words we now use for love — attachment, the secure base, the bonds that steady a life. John Bowlby (1907–1990) changed how we understand the tie between a child and the people who care for them. Where his own age dismissed a separated, crying child as merely spoilt — or quietly congratulated the child who went quiet — Bowlby saw something deeper: an evolved survival system, as real as hunger, built to keep the young close to protection. From that single insight grew attachment theory, and a quiet revolution that opened hospital wards to parents, reshaped adoption and ...

Why do some people create extraordinary impact while others with the same ability stall? This book lays out four fundamental principles grounded in science that have a multiplier effect on life and leadership and explain this paradox. It turns out it's not what talent you have – it's how you...

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...

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.

Do you shut down during difficult conversations? Freeze when you know what to say? Feel anxious over small things, people-please until exhausted, or struggle to relax when everything seems fine? Maybe you have spent years trying to understand yourself. You may have explored anxiety, trauma, attachment, emotional triggers, therapy, journaling, meditation, podcasts, or self-help. Some of it may have helped, but in the moment, it can still feel as though your body takes over. You are not broken. Your nervous system has been doing what it was designed to do: protect you.

Understanding Abraham Maslow and The Hierarchy of Needs: A Complete Guide to Human Motivation, Self-Actualization, and Personal Growth explores the enduring legacy of one of psychology’s most influential thinkers. This accessible and in-depth guide breaks down Maslow’s groundbreaking theory—from physiological needs to self-actualization—and explains how his ideas can still shape our lives, relationships, workplaces, and mental health in today’s complex world. Whether you're a student of psychology, a teacher, a leader, or someone on a journey of self-discovery, this book offers ...

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.

Read by Rory Burnell and the author, Adrian Gore. ‘Demonstrates how to create enduring value’ – Larry Fink, Chairman and CEO of BlackRock ‘For leaders seeking to create outsized impact’ – Ruth Porat, President and CIO of Alphabet and Google Expert advice to master your potential...

Are you ready to rethink what it means to be “smart”? Understanding Howard Gardner is your complete, beginner-friendly guide to one of the most influential psychological theories of the modern era—the Theory of Multiple Intelligences. Developed by Harvard psychologist Howard Gardner, this revolutionary framework transformed the way we think about intelligence, learning styles, and human potential. In this in-depth and engaging guide, you’ll explore all nine intelligences—from linguistic and logical to interpersonal, intrapersonal, naturalistic, and beyond. Discover how each ...

Unlock the Science of Human Growth, Learning, and Adaptation Across the Lifespan. How do genetics, environment, and culture shape who we become from our very first breath to late adulthood? Whether you are a student, educator, mental health practitioner, or curious reader, understanding human development is key to understanding human nature itself. Foundations of Developmental Psychology provides a comprehensive, engaging, and modern exploration of human growth across the entire physical, cognitive, and socioemotional spectrum. Inside This Comprehensive Guide, You Will Discover: Core ...

Trauma Theory & Testimony: Breaking Cycles Through Lived Experience and Developmental Theory is an award-winning textbook memoir that bridges lived experience with developmental theory, offering a powerful exploration of how childhood adversity shapes identity, behavior, and resilience across the lifespan. Blending personal testimony with accessible academic insight, Charlietta D. Owens shares her journey through childhood trauma, foster care, incarceration, and ultimately professional advocacy and licensed social worker.