Forum:Chapters and Volumes

I was looking through volume pages, and I noticed though each volume shares the name with one of the chapters in it, sometimes the volume article will have a completely different name, for example chapter 1 and volume 1. I looked around for a policy that might explain why is that so, but I couldn't find it. Do we use these different names because that's the official English translation of the volume's name? Also, in the volumes which currently are the same as the chapters, is the lack of punctuation marks deliberate so they don't share the exact name with the chapter? Omnibender - Talk - Contributions 15:50, December 22, 2010 (UTC)