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Browse all →News letter of novelist Alma Katsu, who writes both horror and spy novels. Insights on writing and what it's like to be an author from a former intelligence analyst.
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Dr. Jekyll and Mrs. Hyde's metrics, benchmarks, and sponsor data in one document
3K
Above Median in Culture
substack
Culture
Stable
No measurable change this week
1.57%· ~47/post
(comments + likes) / subscribers
vs 0.00% category avg
Weekly
1.2 posts/week avg
vs 1.0/week category avg
Free
Category avg: $7.02/mo
3020
newsletters in Culture
Above Median in Culture
out of 3020 newslettersPublishing Frequency
Weekly
Last published Mar 20, 2026
1.2 posts/week avg