
Discover why we instinctively add when subtraction is the answer. "Subtract" reveals our blind spot to removal as a solution, praised by MacArthur fellow Sendhil Mullainathan as "a great book" that transforms how environmental leaders and architects approach climate change and design.
Leidy Klotz, author of Subtract: The Untapped Science of Less, is an award-winning professor and interdisciplinary researcher bridging design, behavioral science, and sustainability.
A professor of engineering, architecture, and business at the University of Virginia, Klotz explores how subtraction—overlooked in favor of addition—can transform problem-solving across disciplines. His research, published in Nature, Science, and peer-reviewed journals, informs this behavioral science-driven work on optimizing systems through strategic removal.
Klotz also wrote Sustainability Through Soccer, applying systems thinking to global challenges, and contributes to The Washington Post, Harvard Business Review, and Scientific American. A frequent speaker at institutions like Stanford and MIT, he has been featured on NPR’s Hidden Brain and Freakonomics.
Klotz’s work is backed by over $10 million in competitive research funding, including a National Science Foundation CAREER Award. Before academia, he designed infrastructure projects and played professional soccer.
Subtract: The Untapped Science of Less by Leidy Klotz explores why humans default to adding solutions rather than subtracting, despite subtraction’s proven effectiveness. Blending behavioral science and design, Klotz reveals how removing obstacles often outperforms adding complexity—from urban planning to personal habits—with examples like simplifying Lego structures or streamlining policies.
This book is ideal for professionals in design, leadership, or sustainability, and anyone seeking efficiency in work or life. Klotz’s insights benefit innovators, educators, and individuals aiming to challenge cultural biases toward addition, offering frameworks for systemic problem-solving.
Yes—Klotz combines rigorous research with relatable anecdotes, providing actionable strategies to rethink problem-solving. Its interdisciplinary approach (drawing from psychology, biology, and economics) makes it valuable for personal growth and organizational change, with The Washington Post and Freakonomics praising its counterintuitive wisdom.
Klotz argues that societies systematically neglect subtraction due to cognitive biases, cultural norms, and economic incentives favoring addition. He demonstrates how removing elements (e.g., simplifying workflows or policies) often yields better outcomes than adding, using evidence from evolutionary biology and case studies like San Francisco’s highway removal.
The book critiques systems that equate "more" with progress, such as GDP growth metrics or cluttered product design. Klotz highlights how subtraction aligns with sustainable practices, citing economist Elinor Ostrom’s work on resource management and urban planner Sue Bierman’s waterfront redesign.
Klotz cites the removal of San Francisco’s Embarcadero Freeway to revive waterfront spaces, Japan’s ma (negative space) philosophy in design, and Amazon’s “two-pizza teams” minimizing bureaucracy. These cases show subtraction enhancing functionality and aesthetics.
Some critics argue Klotz underplays scenarios where addition is necessary (e.g., infrastructure gaps) or that systemic barriers make subtraction harder to implement. Others note the book focuses more on theory than granular tactics.
Klotz expands on his interdisciplinary research at the University of Virginia, where he merges engineering, architecture, and behavioral science. His prior focus on sustainable design and NSF-funded projects aligns with Subtract’s themes of efficiency and systems thinking.
Amid AI-driven automation and climate urgency, Klotz’s principles help streamline tech adoption and reduce waste. The book’s emphasis on “doing less better” resonates in industries tackling burnout and overconsumption.
While Atomic Habits focuses on incremental additions for change and Essentialism on prioritization, Subtract uniquely targets systemic redesign through removal. Klotz provides empirical evidence for subtraction’s impact, contrasting with anecdotal approaches.
These emphasize humanity’s overlooked capacity to edit and refine.
저자의 목소리로 책을 느껴보세요
지식을 흥미롭고 예시가 풍부한 인사이트로 전환
핵심 아이디어를 빠르게 캡처하여 신속하게 학습
재미있고 매력적인 방식으로 책을 즐기세요
Negative numbers were once considered 'pure nonsense' by brilliant minds like Pascal.
Civilization has fundamentally been a project of continuous enlargement and addition.
Subtract의 핵심 아이디어를 이해하기 쉬운 포인트로 분해하여 혁신적인 팀이 어떻게 창조하고, 협력하고, 성장하는지 이해합니다.
Subtract을 빠른 기억 단서로 압축하여 솔직함, 팀워크, 창의적 회복력의 핵심 원칙을 강조합니다.

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"It is great for me to learn something from the book without reading it."
"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."
"Makes me feel smarter every time before going to work"
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When San Francisco's double-decker Embarcadero Freeway came crashing down after the 1989 earthquake, city officials faced a choice that would define their waterfront for generations. Despite fierce opposition and dire warnings of traffic chaos, they chose not to rebuild. Today, where concrete once blocked the bay, palm trees sway along bustling promenades where families gather and harbor seals bask in the sun. Housing increased by 50%, jobs grew by 15%, and the waterfront transformed into one of the city's most beloved destinations. Here's the twist: this dramatic improvement happened not through building something new, but through removing what was already there. Yet when visitors stroll along the Embarcadero today, they can't see what made it beautiful-the absence itself. This invisibility explains why subtraction remains one of our most powerful yet persistently overlooked tools for improvement.