This was shared earlier today by linda on her website,
https://lindaraschke.net/in-honor-of-david-weis-rip/
"In honor of our well loved colleague, David Weis, an expert on Wyckoff and trading in general, we are making public a special webinar he did for our 2020 workshop. To our delight, he showed how he used Renko charts in conjunction with Wyckoff theory.
Please enjoy!"
https://vimeo.com/394541866
Download: https://www.mediafire.com/file/vq0qpjenbn95bp0/David_Weis_-_Weis_on_Wyckoff_Renko_Charts.mp4/file