Become a Top 1% Product Manager — in Minutes a Day

Master the decision-making playbooks that set elite PMs apart. Dexter delivers bite-sized lessons via text, helping you cut through chaos, earn influence and accelerate your path to promotion

No courses. No apps. Just bite-sized, curated learning delivered where you already are—your text messages.

Trusted by product teams at

How Dexter Works

Dexter combines AI and proven learning science, from leading institutions, to help you learn quickly while actually retaining knowledge

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Built for Busy People

Short 5 minute daily learning compounds over time. Just text Dexter back whenever you have a few minutes between meetings

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Personalized to You

Every lesson is tailored to your role, challenges, and interests — so you can apply what you learn right away at work

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Read Less, Remember More

Proven learning science like spaced repetition, active recall, interleaving and personalization make learning stick

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Grow Your Career

Dexter helps you master one powerful mental model per week

so you apply it, retain it and get sharper over time

Why learn mental models?

They let you prioritize faster, make clearer decisions, and lead with confidence — especially when you already have too much on your plate.

Mental models are how you work smarter, not harder.

Mental models are the best thinking frameworks that exist. They're like cognitive shortcuts that the most successful leaders use to to go from chaos to clarity quickly.

Master the Mental Models Behind Great Product Management

DECISION MAKING

PRODUCT

STRATEGY

LEADERSHIP

Stop drowning in daily fires. Learn the frameworks to triage confidently and focus on what actually moves the needle

Transform from reactive to strategic. See the bigger picture even when you're in the weeds

Cut the endless debates. Win stakeholder buy-in and learn to create repeatable systems that align teams

Mental Model

Inversion — Instead of asking “how do we scale Stripe Radar?”

(fraud detection), they asked “What will break at 10x scale?” to prevent failure states

Takeaway

Thinking about what will block success often reveals the critical scope, rather than thinking only about how to achieve success

Mental Model

Strategic Moat — OpenAI invested in a "Saved to memory" feature which auto saves key user context to ChatGPT making it faster and better every time you use it compared to other LLMs

Takeaway

A good strategy includes defenses, not just features

Mental Model

Working Backwards —Amazon leaders mandate that teams start with a mock press release and FAQs — forcing clarity on what the customer actually wants

Takeaway

Work backwards from the outcome you want and define your systems and team processes around it

and other powerful mental models like

Second-Order Thinking

Pareto Principle

First Principles

Parkinson's Law

Pyramid Principle

Stakeholder Mapping

Strengthen your product-thinking toolkit today

1. Tell Dexter about you

Your role, industry, and personal interests so he can personalize your learning

2. Receive daily messages

Short, interactive lessons sent via text message

3. Learn smarter, faster

One powerful mental model per week, with daily reinforcement

Start Learning Now — $10/month, cancel anytime

Personalized, professional learning that actually sticks.

Delivered directly to your phone for less than a couple of coffees.

Join Talented PMs Using Dexter to Level Up

Ashwin K., Director of Product at Stripe

“Dexter transformed my approach to product strategy and stakeholder management, enabling my jump to leadership. It’s like having a personal coach for better thinking.”