Dear writer/author, you will find this article helpful in marketing your book. I would recommend you market your first book very well, then, it will help you market the subsequent books you will write.
If you publish or push all of them to the market, people might get distracted and won't know which one to buy. That won't also make you an authority.
Alternatively, you can publish and market more than one book at a time, if you are financially buoyant. Marketing requires money as much as your ideas.
Allow people to search your other books using your first book as a reference.
From educational to fiction & non fiction.