The set comes in a really nice binder and includes one versatile.
I got the level 1 set which included 8 books. Level 1 titles: Counting 1–100, Let’s Estimate, Let’s Add, Lets Subtract, All About Patterns, All About Shapes and Measures, Time and Money, and Tallies and Tables. They have levels up to 8.
You can check them out at their website. http://www.hand2mind.com/catalog/product?deptId=VERSATILESMATH&d0=MATH&d1=VERSATILESMATH&d2=410&prodId=410
I made copies of the addition book and put them into protective sleeves that way multiple students can use them with multiple versatiles. Also my students tend to be a little rough with our resources so I can always buy another sleeve and make another copy.
Give ETA some love for me.