Oh, you guys are in for a HUGE treat in May! We demonstrators have been given access to the Eastern Palace product suite early so we can prepare for it to be available to you on May 1st as a special preorder from the new 2017-18 Idea Book & Catalog! I have been playing with it all day. Check out what I've pulled together already just since my box arrived yesterday! Love how everything coordinates.
Yes, those are vinyl stickers that coordinate with thinlet dies! So you put the sticker on your cardstock first, and then position the dies over it. I have never heard of this before, but let me tell you, they are AMAZING. Many of the dies in this set have two or more layers that you can mix n' match to get different looks.
PS--I'll give you a heads-up; I've already decided it will be the Class of the Month featured stamp set for May.
You are going to fall in love with it, too. Don't say I didn't warn you!