Here i have a project i did for my typography class. Our task was to create a way to classify typefaces that made sense to you.
The concept that i created looked first at the serif, determining if it was serif, sans serif or slab serif. secondly you have to look at the weight difference in a letter itself, take the thickest part of the typeface and subtract it from the thinnest. When you have that value, compare it to the chart that i created to determine what family it is from!
TBH this way of identifying is such a mouthful and it it wont work for every typeface out there…! But dont tell anyone, lets keep that a secret :P