Wilhelm has been active as a trainer on a national level with women as well as men.
Wilhelm started as a 13 year old as a volleyball player, a few years later he trained his first women’s team.
In his more than 50 years’ experience he has trained not only youth but also for many years seniors on every level
These days Wilhelm supports successful the coaches of different volleyball clubs with his volleyball philosophy and gives workshops about tactics and techniques on demand.
From the start of his career he was asked repeatedly by coaches for help in setting up trainings.
Then the idea came up to publish his training expertise in book form and currently his complete editions and articles are available digitally and on CD-ROM.