Thanks! Here's my question. My 55-page book for readers ages 10 and up, published in 1969, long out of print, contains 16 lovely b/w drawings of animals and plants. I'd like to resurrect the book as an Amazon eBook. I would be responsible for scanning, reformatting, marketing, etc. The publisher, Prentice-Hall, paid the artist separately--I don't know how much--and held the copyright "only for illustrations for this edition." The artist has died; I assume that his widow now holds the copyright. I'd like to contact her about my scanning the print book.
My question: what would be a reasonable percentage of my royalties to offer her? To simplify bookkeeping, I had in mind sending her a check quarterly, with a royalty statement from Amazon attached.