Below are links to several useful resources.

GIMP - an open-source image editing tool.

Google Play - Google's marketplace that allows authors to publish their own content.

Google Sites - a great hassle-free tool for creating websites. HTML, PHP, Javascript - what's that?

Inkscape - an open-source graphics editor.

Kindle Direct Publishing (KDP) - a direct publishing service that supports Amazon's excellent and free to use tool Kindle Create.

Pixabay - an excellent repository of royalty-free images. Many of the header images are taken from Pixabay.

TheNames - where this site's domain name is registered.