Moleskine is a brand of notebook that comes in various formats, sizes, and papers. The covers are usually black leather (some special editions have silk, for instance, and diaries come in red) and there is an elastic band for keeping it closed.
The GPA that reflects those course choices is the weighted GPA and the GPA that considers all courses as equal is the unweighted GPA. With a few exceptions (University of California schools, notably), schools all use unweighted GPA in college admissions decisions.
On a 0 to 4 scale, 3.8 (93 percent) and 3.9 (94 percent) Grade Point Averages (GPAs) are considered high as they both fall under the 'A' grade. Congratulations! A GPA is important when you apply to a large or mid-sized company, as it shows that the person is diligent.