@NancyP So glad you enjoy and FOUND the Why it Works threads! Like Sandy mentioned they are all in the Learnig Pad forum and while in the Learning Pad forum - right under your name, your alerts, and your private messages/inbox - there is a search box. If you type "Why it Works" and leave the little check box for " Search this forum only" selected you can narrow down the Learning Pad threads to just the Why it Works series. Some members wanted a list of all of these threads in one place so they can try to work through them as fun little personal challenges to try out when they have time, so we have a list of them in the Challenge pad forum too - for those that want to do them as personal challenges and keep track of all the ones they try out. You can find that here: Challenge Pad > Desinger Challenges > Why it Works challenges are stickied up top. (I update it periodically).