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The Best Personal Development Books That Changed How I Think About Success

Personal development books have shaped my thinking more than almost any other form of education. While formal schooling taught me technical skills, books introduced me to ideas about discipline, leadership, communication, business, personal finance, creativity, and long-term growth. The right book can compress years of experience into a few hundred pages and expose us to perspectives we might never discover on our own. Over the years I've read hundreds of books, but a small handful have had an outsized impact on how I think, work, lead, and make decisions. These are the personal development books that influenced me the most and continue to shape my approach to success.

What It Really Takes to Write Children’s Books: Insights from Brooke Van Sickle

Writing for children looks simple from the outside. The books are shorter, the language appears straightforward, and the stories often feel effortless. Yet creating books that truly connect with young readers requires far more skill, discipline, and intentionality than many people realize. Children's author, editor, and educator Brooke Van Sickle has spent years studying the craft, building a platform within the children's publishing industry, and helping aspiring authors navigate the path from idea to publication. In this interview, Brooke shares practical lessons on writing for children, developing creative discipline, building an author platform, and pursuing a long-term career in publishing.

Why Writing Shorter Helps You Write Longer

Big creative projects often feel overwhelming before they even begin. Whether you're writing a novel, launching a blog, building a business, or pursuing any long-term goal, it's easy to become fixated on the size of the finish line. The larger the project appears, the easier it becomes to procrastinate, overthink, or convince yourself you'll start tomorrow. Ironically, the people who produce the most work rarely focus on the finished product. They focus on the next small step. Learning to write longer often starts by learning to write shorter, reducing intimidating goals into manageable actions that can be repeated consistently over time.

The Myth of Multitasking and the Power of Focus

Multitasking feels productive, but research and experience suggest otherwise. Every time we divide our attention between competing tasks, we reduce the quality of our work, increase mental fatigue, and slow our progress toward meaningful goals. The ability to focus on one thing at a time has become increasingly rare, which is exactly why it has become such a valuable skill. If you want to accomplish more, improve your relationships, and make faster progress toward important goals, learning how to focus may be one of the highest-return investments you can make.

What We Can and Cannot Leave Our Children

Most people think inheritance is primarily about money. Scripture presents a more nuanced picture. Proverbs 19:14 tells us that houses and wealth may be passed from one generation to the next, but some of life's most valuable gifts come from God alone. Understanding the difference can reshape how we think about success, stewardship, parenting, and legacy.

Why Positivity Is a Skill You Can Train (Not Just a Personality Trait)

Some people seem naturally optimistic while others struggle with negative thoughts, frustration, or discouragement. It's easy to assume positivity is simply part of someone's personality. I don't believe that's true. While our personalities influence how we see the world, our daily thoughts and reactions are habits we can strengthen over time. Just as we develop discipline, patience, or confidence through repeated choices, we can also train ourselves to respond to life's frustrations with greater perspective and self-control. That doesn't mean pretending problems don't exist or forcing fake happiness. It means learning to respond intentionally instead of reacting automatically. Positivity isn't about denying reality. It's about choosing the most helpful response to reality.

Why “New Year, New You” Fails (And What Actually Works Instead)

Every January millions of people decide this will finally be the year everything changes. They buy gym memberships. Start diets. Purchase planners. Create ambitious goals. And within weeks, many are right back where they started. The problem isn't a lack of desire. It's believing lasting change comes from one big decision instead of hundreds of small ones. Becoming a better version of yourself doesn't happen because the calendar changes. It happens because your daily habits do.

Lessons on Writing, Discipline, and Publishing from Science Fiction Author Thane Keller

My brother, Thane Keller, is a science fiction author, U.S. Army veteran, husband, and father. His experiences serving in Iraq and Afghanistan have influenced both his worldview and the stories he writes. In this interview, we discuss self-publishing, writing discipline, military influence on storytelling, building fictional worlds, and what aspiring authors can learn from the long process of finishing books. Although this conversation took place in 2017, many of the lessons about persistence, creativity, and craftsmanship remain just as relevant today.