That question has as many solutions as there are authors!
I know a few authors that write under pen names, and some of them use a different name for each series they publish.
Some authors, such as J.K. Rowling, employ a pen name for a new or different genre to distinguish themselves from a best-selling juggernaut.
On the other hand, I know some people who write erotica under a pen name because they work as teachers in another life and don't want their students, parents, or friends to know about their "second" job.
Stacey Abrams, a political activist, writes under a pen name. help me with essay writing cheap.