Playtype Posters

I found these type posters by Playtype on Design Work Life, and I love the color combinations, composition, and overlapping letters.

I like the way the letters are oversized; it makes the eye focus more on the aesthetic quality of the type than on what the letters mean, if anything—which is an interesting concept.

And of course the colors in this one are great. Gray and yellow are my favorites!

What do you think of these typography posters?