This is the first spline visualization tool available on internet that allows you to explore splines. properly. Please wait for codepen to load the interactive presentation. Then press run pen to begin.
Resources to accompany the slides -
https://www.youtube.com/watch?v=jvPPXbo87ds
https://www.youtube.com/watch?v=YMl25iCCRew
https://www.youtube.com/watch?v=DLsqkWV6Cag