https://smithsonianassociates.org/ticketing/Tickets/Reserve.aspx?id=240871
I accidentally found this, mainly because it's not the new Ehrman book that I was looking for (origen of heaven/hell).
Bart's banned in Logos, either by Bart or Logos, I assume. Instead, why-Bart's-wrong books are ok.
But for an author that seems to have considerable readership (and expert in post-1st-century), no tickets to be had.