Also, when you're making a book, it helps to have a cover image. I knew early on that I wanted some variation on the "eagle" seen frequently in the seals and symbols of the Colonies on BSG.
I tried to find a "clean" one so I could do with it what I willed. Not easy. Also, and this is about as anal retentive as it gets, it was important to me that there were twelve "wings" or "feathers" or whatever on the symbol. Most of the ones you see only have ten. I wanted twelve for obvious symbolism.
So, after much searching, I came across the PROPWORX website, which has a wealth of photos of props, costumes and more. It was there that I found these decals:
Once I cleaned it up and got it isolated, I started changing the colors to match the themes I wanted to establish for each book.
(PS: If you're wondering why this eagle shape became a symbol of Kobol (and the Colonies thereafter), I'll give you a hint: "Aetos." If you've read Book One, you'll recognize that. Stronger hints will come in Book Two.)