Don't give them Mythical Man Month or Eric Raymond or any of that stuff: dated and esoteric. My interpretation of your post is basically that the business founder is going to be (involved in) hiring, and will be working with several software engineers soon. And you want to help them understand what makes the engineers tick: the sorts of things they find interesting, the sorts of ways they talk about it.
So that's easy. Tell them to look at HN, pick an article with a technical theme that's getting a lot of attention. Read the article, and then read the comment threads.
Don't give them Mythical Man Month or Eric Raymond or any of that stuff: dated and esoteric. My interpretation of your post is basically that the business founder is going to be (involved in) hiring, and will be working with several software engineers soon. And you want to help them understand what makes the engineers tick: the sorts of things they find interesting, the sorts of ways they talk about it.
So that's easy. Tell them to look at HN, pick an article with a technical theme that's getting a lot of attention. Read the article, and then read the comment threads.