Steve Tippins recommends Chapter 1 run 12 to 20 pages and Chapter 2 between 30 and 60 pages, depending on your field. The literature review should explain existing work, position your ideas, and show where your research fits.
Chapter 1, your introduction, 12 to 20 pages, somewhere in there, is typically sufficient to introduce things. Where we get into some variation more is in Chapter 2, your literature review. I see some people say 40 to 60 pages. I know of a school that says it must be between 30 and 50 pages, and some will say if you're at 29 pages you aren't at 30, and if you're 51 you're not at 50. My bias is enough to explain things and show what the literature is and how your ideas fit within it and the gap. But thinking in the 40-ish to 50-page range, you know, maybe 35, is typically going to be enough depending on, again, your discipline. I'd love to help you finish your dissertation so that you can go out and change the world.
