This grid design is from an issue of Rolling Stone magazine. The main, larger grids are pretty easy to discern, but from how some of the text is aligned, I am sure there are more dimensions than it seems.
The last post will be a wrap-up post. What will you always remember about GRA 217? Serif v. San Serif? Avoid Comic Sans at all cost? You can use a grid, and break it too? How to use the Pen tool? Whatever you found most memorable.