As an octagenarian I need some help with your website, specifically how do I make my books available on it?

[Branton Holmberg]

One of my career areas was a professor of psychology where I learned a great deal about the world of imagination.  In 2010 I lost my voice to thyroid cancer, I was retired by then and began writing fiction adventure/fantasy stories about 3 teenage cousins, young archeologists who solve archeological mysteries,  find dimensional powers and run up against arch enemies that test them to their limits.  Sam, Yoder and Mike are high school juniors as the series of 10 adventures begin.  Each adventure is a short read of around 100 pages.

How do I get them in front of the this teenage audience?  They are all self-published and available through my website at Amazon.com/books.

Any help to guide me to the readers I'm confident will enjoy my books will be greatly appreciated.

Dr. Branton Holmberg