If you’re seeking reprint permission, be sure to contact me well in advance of your deadline. I’m a one-man band, and unfortunately it often takes me awhile to get around to these things. Be warned, if you need permission to reprint cartoons in a book, I do require payment in advance–I know it’s a nuisance, but I’ve been burned by “payment on publication” policies more than once.
Also: Please state your fees upfront. You know your budget and your print run–tell me upfront what you’re offering, and we’ll work from there.