Can someone add my books to a series

[John]

I'd like to create a series called "The Trivial Game" and add my books "The Infinet," and "The Infinet Directives" to it, but when I click the "Add new series" link it says I don't have permission. Could someone help?

[M.]

https://www.goodreads.com/series/3881...
Done!

[John]

Thank you!