I interpreted the vague "Artists?" very differently from you. I thought it was saying "What about this makes it appropriate for artists? It is not showing off the beauty and simplicity of Calculus."
> You might be thinking that all artists are bad at math or too stupid to grasp calculus
I think labeling it as "for Beginners and Artists" is actually doing some of that. I certainly would not make a book labeled for artists unless I thought it would be particularly good for artists and from what I have seen this book does not touch on creativity or beauty. Therefore it must be labeled as for Artists because they can't learn calculus from existing books which might imply
"all artists are bad at math or too stupid to grasp calculus".
> You might be thinking that all artists are bad at math or too stupid to grasp calculus
I think labeling it as "for Beginners and Artists" is actually doing some of that. I certainly would not make a book labeled for artists unless I thought it would be particularly good for artists and from what I have seen this book does not touch on creativity or beauty. Therefore it must be labeled as for Artists because they can't learn calculus from existing books which might imply "all artists are bad at math or too stupid to grasp calculus".