While working on another project that involved people having to write their bios, I was surprised to learn that not everyone realizes a bio should be in third person.
When writing your bio if it's for something associated with writing--you should zero in on your writing accomplishments which means at least mentioning your latest book(s). The title should be bold and in italics with no quotation marks. My latest book is No Bells.
Add the names of the writing groups that you belong to.
Be sure to add your links--the URL to your webpage and your blog, if you have one.
If you bio is on a blog, add a link to where your book can be purchased.
Depending upon where the bio is going to be displayed, it's probably not necessary to name all your family members and accumulated pets. Of course if it's a blog where the people who stop by are interested in the everyday details of your life, go for it.
Always mention your name--yep, sometimes people forget that most important part of a bio.
That's my writing advice for now.
Marilyn aka F. M. Meredith