Are you looking to earn your CCXP this year?
I get a lot of questions every week from customer experience professionals who are interested in taking the CCXP exam but aren't sure how to prepare for it. There's a website for the exam with a lot of details and resources; it now also includes a document that lists books, whitepapers, websites, etc. that you can read to help you prepare.
But there's no substitution for experience and having done the work.