The 4th edition is the latest version of the study guide, although when this post started back in 2016, it was referring to the first edition.
I am so happy I get to share the journey with you Gisela, in my Fall 2021 CAP study group. I provide flashcards to my students, so you don't need to worry about that. You won't need to buy any other materials than the 4th edition study guide (preferably bundled with the ereader version 6 month subscription). Let's go get you certified!
Keep an eye out for my free Certification Options for Administrative Professionals webinar that I will offer in May/June which covers what's involved in pursuing the certification (eligibility, costs, materials needed, time requirements, recertification, etc.). You can sign up for my mailing list at www.mrhenterprises.com to get notified when I schedule those free webinars. I might decide to offer one in April as well, just because I see so many people looking for the information. I'll have to see how my schedule looks for that. I'm already booked with quite a few speaking engagements and training sessions with it being Administrative Professionals Week.