JACK’s Newsletter

Substacknewsletter · by Jack Liang · English

Relationships, change and leadership

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Audience
Not shown publicly
We show a dash rather than guess
Observed frequency
Monthly or less
From 1 post indexed in the last 90 days
Last post
Sep 2, 2026
Sep 2, 2026
Likely audience
Personal development enthusiasts
Inferred from post content

JACK’s Newsletter is a Substack newsletter by Jack Liang covering Identity, Psychology and mindfulness. NewsletterFIT indexed 1 post from it in the last 90 days, most recently on Sep 2, 2026.

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Compiled from public pages · refreshed Oct 24, 2026 · How NewsletterFIT collects and labels data