What is the main topic of the conversation?

W: That’s a beautiful piece of furniture, Albert. Where did you buy it?
M: That cabinet? Actually, I made it. It took me six months to complete.
W: Really? It looks like an antique. You’ve done a great job on it. When did you learn how to make furniture?
M: Well, I started making furniture as a hobby when I was still in my early 30s. I find it relaxing. If you want, I’ve got some other pieces that I can show you in my workshop. I’m working on a new piece for my sister.