For creators
The Home For Authors
A Castro is not an ad. It is a direct line to readers who already care — useful from preorder through the backlist, tours, and everything you still want to say.
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Types Of Author Content You Can Create
Share chapters, essays, and research notes that do not fit the next manuscript — and keep readers warm between release cycles.
The path
Start Creating And Grow Your Audience
You do not need a huge audience to start. You need a clear offer, a launch plan, and a habit of publishing.
To get started on Castro, head to the sign-up page and create your profile. You'll choose a username, add your details, please complement the onboarding process in order to be able to continue, login if you already have an account.