How Long Your Substack Posts Should Be in 2025
Write less, please
Why you need to decide for yourself how long your posts should be, not just Google or look to AI for the answer.
Hard data on readers’ habits in 2025 to help you make the decision.
My blessing not to write more because you think more = offering value.
Note: When this post first appeared, it created some controversy. It even sparked an excellent counter-post—“Against Branding (and Sarah Fay)”—from the excellent . (I joked that his post would have been better if it had been shorter.)1
As always, AI doesn’t have the answer to how long your posts should be. When I work with my private clients, we always take into consideration:
Reading trends in 2025
Their category
The time they have to devote to creating quality posts, no matter the length
(This last one may be the most important.)
We never google for the answer or turn to ChatGPT and neither should you.