The Inventor's Kit is a great starting point for beginners. Another great resource to go with that is the Arduino Cook Book (https://www.sparkfun.com/products/11170
), which has a lot of great example code and will help you continue to develop your coding skills with Arduino after you've worked through the introductory circuits inside the Inventor's Kit.
If you are interested in e-textiles at all, a good starting point would be the Protosnap-Lilypad Development Kit: https://www.sparkfun.com/products/11262
. It doesn't come with example code, but you can find a lot of great examples on the product page, in the forums, and on the Arduino.cc site.