Les Bubka has published a free Ebook with rules for success in Karate. 10 Sensei have given their insight. I’m proud to be one of them.

Thank you very much, Les for your great contribution to the community and thanks for inviting me to support you in your idea.
I hope you guys will download the ebook, spread the word in your communitys help others to grow.
https://lesbubka.co.uk/pubs/Rules_For_Success_in_Karate_eBook.pdf