I read a little bit (only section 1.1, if I recall correctly) in high school (in grade 11, I think). I didn't get very far (mostly due to being busy with school

I read a little bit (only section 1.1, if I recall correctly) in high school (in grade 11, I think). I didn't get very far (mostly due to being busy with school work/forgetting about it), but I didn't find the parts I read too difficult. It doesn't assume much prerequiste knowledge.