You might want to check with the publisher, McGraw Hill (Education) as other sites' information may not always be the most accurate. I ran into some confusion with the First Aid Cases for Step 2 book, so I called McGraw Hill and they told me the release date would be later than the one I found on Barnes and Noble, Borders, etc so I knew I wouldn't be able to get it in time for my exam (which allowed me to prepare with that knowledge in mind).