Dear Prof. XXX, Thank you for being a member of my Ph.D. dissertation committee. I want to make available to you the current draft of my dissertation, which is nearly complete. I appreciate any comments or feedback you have about it. You can always get the latest version from this URL: https://vsl.cis.udel.edu/ziqing.html I will continue to edit the draft until 3 weeks before my defense date. At that point, the draft will become the official version that I am submitting for the defense. There will be an opportunity to make further changes after the defense based on your feedback. Speaking of the defense, I would like to schedule a defense date with you. I was wondering whether you have free time slots on any date on or after December 19. The defense will take at most 2 hours, including a 45-50 minute presentation by me. My preference would be the earliest date possible on or after Dec. 19. I appreciate your willingness to be on my dissertation committee and look forward to hearing back from you. -Ziqing