Mark Warren profile photo
Mark Warren
Lindgren Group

Author/editor of several TWI books. Researched the original programs in Archive collections around the world. 30+ years of practical experience.


Are you an expert?

Easily create your awesome business portfolio

Sign up through a social login, and you're all set.

Your clients can find you through our powerful AI-based search engine and book your time.

Your profile will be quickly indexed at Google too.