Now in its ninth year, our annual poll showcases 255 vital video essays, nominated by 72 international voters.

Marianne Bonner, CPCU, ARM, covers business insurance topics for Investopedia, building on 30 years of experience working in the insurance industry. She has written extensively for The Risk Report, ...

Steffini Stalos, DO, FCAP, is a pathology and lab medicine physician. She is also the chief medical officer of the lab consultancy firm Blood Associates, LLC. Mean corpuscular hemoglobin concentration ...