I’ve been asked a very interesting question: Anyone can benefit from advice, understood as bringing the knowledge and experience of others to bear on your problem, while acknowledging your circumstances and goals. In view of this, what is the right audience for your book?
I think that the most suitable readers are those who have some experience with this chain: knowledge + experience + thinking ⇒ decisions ⇒ success OR failure. If you’ve not made any decisions in your life that are complicated, then you’re unaware of the roles that knowledge and experience play, and are oblivious to how bad outcomes can flow from faulty steps. For many young people, their first such experience is with applying to college after high school, or looking for a summer job after freshman year.
So one way to answer the question is: The book is for college sophomores and above, or for people with equivalent life experience. There is lots more to say about the best audience, which I’ll leave for another post.