Copyright permission can take a few days to a few months. Working with attorneys at publishers and movie studios can be difficult. I may hear from them right away or not at all. If the answer is yes, I may only have permission for certain parts of a book or article because of multiple copyright ownerships. Finding or receiving material to use can take hours to days of back and forth with more than one individual.
Designing a full size book down to a miniature can take 2 to 8 hours. You want the elements of the cover to be crisp and clear. Not blurry or fuzzy. Sometimes that means printing the cover 5 to 7 times before its exactly right.
Illustrations for book pages can be just as difficult to get a crisp clear image. They weren’t meant to be printed less than an inch tall. Sometimes that means taking the image apart and putting it back together in a different manner so the lines or colors appear sharper.
I have learned many different book binding techniques. I finally combined several to achieve the quality that I wanted. Yes, I’m a little, or a lot picky, but I think it is worth it. :D
Paper is important. I use digital paper that is acid free archive quality. So unless you leave you book in direct sun or weather, your book will last for many, many years. Miniature books are collectors pieces not toys for children.