The issue of pen names

Hallo readers,

In case you don't know already, Liz Davis is my pen name. Liz comes from my first name, Elizabeth and for Davis, I took my father's name (David) and replaced the d with an s. My real name or should I say, names are, Elizabeth Grace Tangi Adewole.
I'm not sure how many of you use a pen name or are considering using one, but I think it's an interesting topic to discuss. Since I write contemporary romance novels as well as children's books,I'll be using two pen names for each genre.

The research I've done online gives several reasons why writers use pen names. Here are a few articles I found useful.

A rose  by any other name: pros and cons of pseudonyms
Writing under a pen name: when should an author use a pseudonym?
Should authors use a pen name?
Pen names: do you know the true identity of your favourite author?