Internationally best-known casters and instructors are at the Experience the World of Fly Fishing demos: You will see the most varied casting techniques and styles for both one-hand and two-handed rods.
Juergen Friesenhahn will introduce the casters as well as coordinate and be the moderator for the casting program. He will accompany the English-speaking casters and translate for them into German.
Also look at:
http://flyfishing-blog.com/flyfishing-blog.com/2020/02/20/as-fly-tyer-at-the-2020-ewf-peter-reiner-from-germany/
http://flyfishing-blog.com/flyfishing-blog.com/2020/02/18/kate-blubaugh-will-be-present-at-the-ewf-again-after-six-years/
http://flyfishing-blog.com/flyfishing-blog.com/2020/02/16/the-list-of-the-fly-tyers-at-the-ewf-is-online/