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Author Roland Allen joins Joe for a deep-dive into his book, The Notebook: A History of Thinking on Paper, and the surprising legacy of one of humanity’s most powerful tools: the humble notebook.

Whether it’s a green notebook in your cargo pocket, Leonardo da Vinci’s sketches, or a modern writer’s Moleskine, notebooks have shaped how people think, learn, and lead for centuries. In this fascinating conversation, Roland shares how these simple collections of thoughts, drawings, and quotes—what he calls “the first mixtape”—have been central to creativity, memory, and meaning throughout history.

Whether you're a leader, writer, soldier, or student, this episode will inspire you to pick up a pen and rediscover the power of thinking on paper.

In this episode, we explore:

• How a personal diary led Roland to uncover the global story of notebooks and their impact on civilization
• The Zibaldoni: a 14th-century Florentine notebook tradition that sparked the birth of modern literature
• Why Leonardo da Vinci never left home without his notebook—and how it supercharged his creativity across disciplines
• How Isaac Newton rewrote his own history by editing his notebooks
• The power of the commonplace book: a forgotten practice that shaped minds from Shakespeare to modern military leaders
• How notebooks create lasting knowledge—from 19th-century whalers to 21st-century climate scientists
• The quirky and wildly different notebook habits of Agatha Christie, Virginia Woolf, and Roland himself
• Why writing by hand helps us remember more, make better decisions, and build resilience through tough times
• Joe’s reflections on keeping a green notebook in combat and why he now journals with his future self in mind

Whether you use a green notebook, a Moleskine, or a legal pad, this episode will change the way you think about what it means to write—and why it matters.

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