Writing to think more clearly.

Leon Zhang began as a private notebook for language learning and product ideas. I started publishing here to make my thinking explicit and track what actually works over time.

This site is independent, occasional, and unsponsored. I publish when I have something tested, useful, and honest to share — especially around the passive-active vocabulary gap and building tools from first principles.

What we publish

Practical essays on language learning, journaling systems, and building in public. You will also find notes on long-term decisions where time and money intersect.

Who we are

One author, writing in public while learning in public.