3Delight for Houdini Tutorials by Lewis Taylor (Vimeo).
https://vimeo.com/tinyhawkus
3Delight For Houdini Tutorials by Right-Brained Tutorials (Youtube).
https://www.youtube.com/playlist?list=PLyH0C6d0_ZdTYoPGP_qmgAY7CG2f7HX5t