Hi,everyone. I am looking for an introductory textbook on moduli theory, I don't have goodabout the background on algebraic geometry(Hartshorne chapter1~4),I have read Hartshorne chapter1~4. could you please show some good books or roadmap for studying moduli theory which emphasis to arithmetic aspect?
how about Mumford's GIT? is it an introductory textbook?
Thank you very much!