Below is the Oni Press page from Diamond Previews advertising the book.
Diamond Order Code for Comic Book Shops: MAR094379
ISBN for other book outlets: 978-1-932664-88-1
The current ISBN is the same as on the canceled solicitation from last year, so some outlets may not be fully updated yet.
The second printing of 12 Reasons Why I Love Her is also due in May, so you can order them together.
Currently, I am pencilling the Madman Atomic Comics story that Jamie wrote, and it will be in #16. I am also preparing for the next full-length project I will be involved with, to be announced soon!
