"I was hoping you would know where to find the long list of picture books that teach dialogue."
"You've come to the right place. It's right here!"
If you missed the other Story Elements, you can still study them all (character, conflict, plot, dialogue, theme, pacing, word play, patterns, rhyme, beginnings/endings). Also, see the sidebar...
Learn how to write good dialogue for picture books (and novels) by studying the books in this list: