Chess IM vs GM International Master vs Grandmaster

What exactly is the difference between a Chess IM, a GM International Master, and a Grandmaster?

Who is a chess Grandmaster?

Divya Deshmukh becomes Woman Grand Master

Chess Schools of Thought - 3 DVDs

Which is the stronger title, IM or WGM? - Chess Forums

Chess Titles - Chess Terms

Hanoi GM Chess: IM Fahad of Bangladesh maintains solo lead

Emory Tate: chess savant, warrior (1958-2015) - The Chess Drum

How to Get a Grandmaster Norm: 3 Keys You Need to Know

Charlotte Chess Center Blog: 3 Earn Norms at 2017 CCCSA GM/IM Norm