Which api to learn?

Paul Hobson wrote:

The only pyplot function I let myself use is plt.subplots() to quickly
create the Figure and Axes objects. From that point on, I operate on those
objects directly. Frankly, it reads almost exactly like pyplot code, but it
is a *lot* more clear what's going on.

...

Actually this is going to be harder than I thought. Looking around for some
examples of API not using pyplot I'm not turning up much. If I look at
http://matplotlib.org/api/index.html

I quickly find myself staring at pyplot docs, and if I look at a few
http://matplotlib.org/examples/index.html

I see pyplot examples.

Where would I find non-pyplot examples and docs?