Depending upon the grade, I could probably tell you what I had written all over my book covers.

In elementary school we were restricted to:
Name
School
Grade
and nothing else. No scribbling, and no ink color other than blue.

High school was a differnt story. We had all the fun colored pens, boys names, couple's names written inside hearts, bands, singers, peace signs, smiley faces...

What did your books/binders look ike?