Making the Post/Page Content Editor Box Bigger?

Question

I'm having difficulty in creating a big post since the editor box is quite small. I want to make it bigger. Can I?

Answer 1

You have a couple of options. First, you can always click on the bottom right corner of the post edit box and drag to resize:

However, you can also make it so that the post box is larger by default. Go to Settings > Writing, and change the value for size of the post box:

Answer 2

You can also click on the blue square icon, second from right in your screenshot. That brings the edit box to full screen.