For all Earth School podcast interviews by Jena prior to 2016, use the search button or list of topics to find what you are looking for.
Top 5 are here.
For more recent explorations, visit the Earthuni sister site.
Tuesdays with Richard
Every week over a 6 year period, Jena Griffiths interviewed her teacher of hands, Richard Unger, the genius behind modern hand analysis. Many of the interviews are freely accessible on this site. Access them here.