Expertise:  I am delusionally obsessive about Buffy the Vampire Slayer. I have read every script available, every novel, every series guide (authorised and unauthorised) and seen every episode (including commentary and special features) at least 100 times. If you ask it, I know it. I can also answer any question about the novels of Laurell K Hamilton and Kim Harrison.

Experience in the area
Extensive personal research into the shows, novels, supporting material. I have basically done everything but dumpster dive the people involved.

Education/Credentials
Nothing official I can hang on my wall, but if they gave out PhD. for Vampire and Witch Studies, I would have 20.