I've often felt like the Rodney Dangerfield of children's book illustrators. So much of it seems like a hush hush situation but I feel like writers get more respect than illustrators when it comes to publishing children's books. I've been in this business for over 20 years. I know the pay isn't the greatest, but I feel like it hasn't improved over the past 15 years! I know that teachers' salaries are not the best and yet they make more then I do. I'm having to do a lot of research, too, that editors seem to not acknowledge as time spent on a project. I find it all so frustrating lately and I hate being so negative about the business, but I'm single and just trying to make a living at what I can do my best at. Even Amazon doesn't give me recognition on a picture book and just gives the author the credit on their site.I can't do much about what you're being paid; perhaps you should be negotiating harder. ...And stepping up the pay scale in illustration is often a matter of developing a style that's recognizably yours and that builds a fan base. Is yours unique?
In terms of authors getting more respect, I think this is true some of the time, unfortunately. The public understands better what the author does, and tends to credit the author with the generation of ideas for the book. (Often idea generation is the author's, but illustrators also sometimes contribute ideas to a book.)
Let's just recognize right here that the public simply does not understand how much work it is for either the author or illustrator to create even the simplest picture books—which is why idea-generation is where they're laying all the glory.
Now, editors have much less of an excuse. True, editors are sometimes buffered from illustrators by the designer, who may or may not trouble to let the editor know how much work has gone into the illustration. But a thoughtful editor should be able to guess, and moreover should be interested enough in her field to find out.
What to do about this? I'm not sure there is much to do. But artists could make a start on educating people by not just showing finished art on their websites. Giving viewers a sense of how many studies/drafts you went through, the brainstorming you did, will help them to realize that you have a job, not just a pastime.
(And editors face the same thing. Lots of people face the same thing. When the public doesn't have any idea how difficult a job is, they go ahead and assume it's easy. How many jobs do you think of as "easy"?)
Amazon is something you can fix, though. There's a link at the bottom of the page (in the Feedback section) where you can click to update product info. Or you could click on the "any other feedback" link, which allows you to send Amazon a message-- which could include a link to your publisher's website so that Amazon can double-check that the illustrator is who you say it is. Give them a couple weeks to make the changes you've requested.