While we’re on the subject, this from @DocNoir - as opposed to the bullshit from Trestle after the fact (edit: now linked as a FreezePaged copy of the Google cache) - is how you define a mistake (as opposed to knowingly ignoring the rules), and the correct, classy way to deal with one. Good stuff.

Edit to add: Incidentally, I don’t have Neil’s vast back catalogue, but of the couple of things I have on sale, both are my own. One (shonky-ish execution, but a nice concept) was a pen-tool rework of a photo of my own hand and a lump of wood, and one’s a grubbied up shot of my mate Tom’s arse, both shot especially. Back when I had the couple of Penguin books not available in the US on offer, they were based on ‘by’ licensed CC images (attribution; commercial use and modification allowed) credited and IIRC linked to at the back. All future stuff is likely to be based on my own photos if it can be. Aside from anything else, you get a lot more flex that way.