I appreciate that you had an idea and put in the time and effort to make something of it, and then shared it.
To what degree do you find that books of a similar topic have a traceable lineage? Like You Are Not So Smart, and then The Power of Habit, and more recently Goodbye, Things (also traces back to The Life-changing Magic of Tidying Up), in which the author actually and thankfully cites previous works that were meaningful to him. Would it fit your website to show a web of books and how they interrelate?