I've always found the different kinds of omnibus manga releases you find to be very interesting. There is a massive variety of ways publishers have tried when formatting a omnibus volumes. Needless to say sometimes they really really miss the mark. At the same time however they will also stumble upon a great format and in this video I want to point some of these out.

Video Timestamps
0:00 Intro
0:58 Dark Horse
4:07 Kodansha Comics
9:50 Seven Seas Entertainment
11:19 Yen Press
13:43 Viz Media
16:19 Soul Eater Perfect Edition
18:20 Vertical Comics
19:28 Closing Thoughts