I have a masters degree from both a US university and one in Europe. It always struck me how the American books were consistently thicker then the the ones I go

I have a masters degree from both a US university and one in Europe. It always struck me how the American books were consistently thicker then the the ones I got in Europe. The contents was the same basically, just much more condensed writing. The American books I could read almost like a novel, whereas before I had to carefully study each page, sometimes read it two times to understand what it meant. Just a matter of style really, I wouldn't read too much into it. Perhaps the fact that in the US you have to pay for your own text books is a driver too.