Alright, throwing in my first question! Be gentle lol. So, I've done alot of zines in the past but honestly have always put the printing aspect of it (ie document set-up, proofing) on the actual print house I use, whether riso or any other. But now that I'm trying to get a more professionally formatted comic together I wanted to ask about size/ratio of paper I should use or that is recommended. General googling says 11x17 inch is standard with a 10x15 inch working space. Is this the standard or are there others sizes depending on the book size you want printed? One more note - I don't necessarily want a hardcover book for this concept per se, I'm thinking more soft cover, smaller size, lower volume pages.

Are there special considerations to keep in mind when deciding if I should have the illustrations coloured? Is there a generally-preferred route when it comes to colouring v. black and white for single issues, and/or graphic novels?