Check on Amazon.com - they have some great Kumon books.
Also at Target and TRU, there are some great workbooks - we have one by this brand that we love (might be the same one, just an older version) -
https://www.toysrus.com/product/index.jsp?productId=3235662
Target sells Kumon books as well, but a limited selection. I was just thinking you probably want to thumb through them to see what the content is. But DD loves the Kumon series, like mazes, counting, ABCs, etc. I think you can preview some of the pages on Amazon.
Re: * wendy *
Nest Bio ~ ~ Baby Food Blog
Hey W! Last year we got Chelsea some board-type books with a handle and a dry erase marker - one with letters and one with numbers. There are tracing activities along with basic phonics and counting, etc. I got them at either TJMaxx or Marshalls...
My mom also got Chelsea some workbooks that she found at Target and Bells which is basically like Marshalls. I always check Marshalls b/c they are cheaper for that stuff!