Let's experiment. It's made of wood. It's made from wood. . Sort of the same. "made of" tells us the material that is is comprised of. "made from" suggests there was aprocess that took raw wood and made "it" from it. . In practice, little difference. . He will not fail. He's made of sterner stuff than that! - Talks of his personality and resilience. He will not fail. He's made from sterner stuff than that! - could work, too. . It's made from the bark of the oak tree. It's made of the bark of the oak tree. Yep. . Can't seem to find a case where you can use one but not the other. .