As a graphic designer I did my own covers. I have several classes, business class, writing class, publishing class, and a Makerspace class that allows me honest, free and helpful was to support my writings. Makerspace provides free printing for advertising posters, book marks, business cards, T-Shirts and buttons. The business class offers me advice and guidance on my front and rear covers, metadata plus other pertinent advertising materials. The writer's class offers me free editing, suggestions and my beta readers. Many of the people in the writer's group are retired teachers looking to stay involved and useful. I go where I know my readers are hanging out and leave cards post flyers. I'm currently looking at larger advertising billboards, bus benches and? My publishing class taught me to use MS Word and set up my own books for Amazon.