Sciptable object in Mathcad 15

Hi, I am new in Mathcad with a little experience. I would like to learn about the Scriptable objects in Mathcad 15. I hope it will not only help me to learn the automation but also sharpen my Mathcad skills. Since I am very naïve in the programming skills, I would highly appreciate if you provide to some good references/books to learn the Visual basics which will directly help me to do some work on the scriptable objects. Many thanks S