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The Product Notebook

90+ articles, written weekly.

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The Product Notebook on Substack

The Product Notebook is my weekly product newsletter where I break down complex product, fintech, and technical concepts into clear, practical insights for product managers and builders.

I started it after my transition into product management as a way to learn in public, document my thinking, and sharpen my product judgment.

Over time it evolved into a structured knowledge base covering real-world product problems, frameworks, and lessons from building products in regulated, high-stakes environments.

Product fundamentalsFintech infrastructureAPIsPaymentsLendingExperimentationCareer growthExecution & strategy