I love the Essential 55, but it is a little much for my classroom. I have adapted several of my favorites into 10 slides to be hung in my classroom in the Fall! :-)
If you are looking for a new set of "classroom rules", or new material for your classroom contract, these are great. I also highly recommend reading the book by Ron Clark.
The chalkboard frames were purchased from Amy Alvis, and the font was created by Kimberly Geswein.