Notes

Writing from the desk, not from a content calendar.

Short essays we use in class. They assume you already touch a catalogue. They are not beginner explainers.

Person working on a laptop at a cafe table
Black smartphone lying on a desk

12 min · Networks

Why add-to-cart rates stall on Thai mobile networks

A 3G fallback during a live sale is not a UX bug. It is a funnel event you can timestamp and brief.

 Hands sketching a user flow on paper

10 min · Sessions

Reading session depth without vanity metrics

Scroll percentage is a costume. Size-guide opens and variant taps are closer to intent.

 Stacked ecommerce parcels

9 min · Checkout

What cash on delivery still teaches about mobile checkout

In several provinces COD remains the honest conversion number. Treating it as legacy is a Bangkok luxury.

 Night market stalls with warm lighting

11 min · Calendars

Cohort windows for festival commerce

Songkran browse is not a Q2 strategy. How to cut festival cohorts without deleting the week.

 Person shopping on a phone in a store aisle

8 min · Retention

When push notifications inflate repeat purchase

An open is not a second order. How Retention After First Purchase treats the 21-day COD gap.