I have some very important news for you if you're the kind of person who likes to throw money at things you enjoy reading.
You can get Atomic Robo and the Ring of Fire #4 at your local comic book shop right now. This instant! It's there! On a shelf and near other IDW titles I bet. In any case it's looking quite handsome, though not so handsome as it would look in your grubby little hands (wash them before you go out, good lord).
But that ain't all. It's also available at comiXology via this here link.
For a free preview of the issue, uhhhhhhhhhhhhhhh don't be stupid.