The Pushing Points Topology Workbook is a software agnostic 125-page guide that teaches you the foundation of SubD topology. More information can be found here: http://pushingpoints.com/v2/the-pushing-points-topology-workbook/ https://youtu.be/vaKvO_iYMds
The Pushing Points Toolkit is a collection of scripts (currently includes 31 tools) that I have created to help increase efficiency when working in MODO by speeding up given modeling tasks as well as add new functionality. Enjoy! Click here to access the Pushing Points Toolkit