Kirby Sommers
ExcellentAuthor and investigative journalist writing original content on the space between Area 51 and Breaking Bad. For my books: kirbysommers.com
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The H Files by Helen Castor
by Helen Castor
Strong in History
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Last synced: Apr 28, 2026
The H Files by Helen Castor by Helen Castor has 4,000 subscribers, making it a newsletter in History. It publishes weekly with an average length of 1,427 words and charges $6/month for premium content.
Dispatches from behind the scenes of the history I write
Cadenceweekly
Length~1,427 words
Paid tier$6/mo
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