Both of these books are signed by Positronic Publishing Editor/Publisher Warren Lapine, who I think also edited both of these (though that’s not mentioned on their covers or title pages).
Zelazny, Roger. Immer, Zlaz: The Zelazny Yoke Letters, Portrait of a Lifelong Friendship. Positronic Publishing, 2022. First edition? hardback, (sold as such, though its a print on demand book; as there’s no date code on the POD page at the back, so its possible that it’s a first printing), a Fine copy in decorated boards, sans dust jacket, as issued, signed by editor/publisher/introduction author Warren Lapine. Massive 933 page volume of correspondence between Zelazny and longtime friend/critical biographer Carl B. Yoke. Bought from Lapine off eBay for $20.

Zelazny, Roger. Seven Tales in Amber. Positronic Publishing, 2023. Hardback print on demand book; as there’s no date code on the POD page at the back, so its possible that it’s a first printing, a Fine copy in decorated boards, sans dust jacket, as issued, signed by editor/publisher/introduction author Warren Lapine. In contrast to the above, this is a slender, 86 page hardback containing seven Amber stories, many of which had originally appeared in obscure places like Amberzine. Bought from Lapine off eBay for $12.
