Who is the first author to be included in forbes billionaire list?

While there are many authors who have achieved incredible wealth, Forbes doesn't specifically track a "first author" on its billionaire list. The list categorizes individuals based on their net worth across various industries, including business, finance, technology, and entertainment.

However, some authors who have made the Forbes Billionaire list include:

* J.K. Rowling: Famous for the Harry Potter series, Rowling's estimated net worth is around $1 billion.

* James Patterson: A prolific author known for mystery and thriller novels, Patterson has a net worth estimated to be in the billions.

* Stephen King: One of the most successful horror authors, King's net worth is estimated to be over $500 million.

It's important to note that Forbes' list is based on estimates and fluctuates over time. The exact order and inclusion of authors on the billionaire list can vary depending on various factors like book sales, investments, and other assets.