It feels great when you've created things that other people value. My math book, Alligator Angles, which is all about the angles (go figure) has been ordered the most. And now another book, Writing and ADHD: Tips to Help Finish Your Writing Projects, has been highlighted in a local health newsletter and will be referenced in another article a speech professor is writing. (It has also been cradled to the chests of several members in my writing groups.)
I wrote those booklets for my kids, but I published them to benefit others who were dealing with the same issues. Their spread is a sign that they are living up to their potential and doing what they were designed to do - help.