Qual è la differenza tra made of e made from ?Sentiti libero di rispondere con un esempio.

This is what I found: http://dictionary.cambridge.org/grammar/british...
Made from:
We often use made from when we talk about how something is manufactured:
Plastic is made from oil.
Made of:
We use made of when we talk about the basic material or qualities of something. It has a meaning similar to ‘composed of’:
She wore a beautiful necklace made of silver.

To explain more in my own words, "made of" is often used when the object changed its form (not always!), like oil➡️plastic, "made from" is usually when the object only changes its shape, size, like silver➡️necklace, and wood➡️wooden table
Hope this helps