E-Book Publishing
The shortcut: Stop pricing your e-book at $0.99 to "get discovered." A $14.99 non-fiction e-book in a tight professional niche makes more money with 200 buyers than a $2.99 book makes with 2,000.
Industry: Media & Content
Investment level: Micro — $100-$500
Time to launch: 8-14 weeks (4-8 weeks writing, 2-4 weeks editing/cover, 1-2 weeks upload + launch prep)
Best for: Someone with hard-won expertise in a specific job, hobby, or problem — recruiters, freelance designers, real-estate agents, hobbyist beekeepers, trade-school instructors. You don't need a platform. You need one tight topic where readers already know they need help. What you'll likely make: $200-$800/month by month 6, $1,500-$4,000/month by month 12 once you have 2-3 titles in the same niche. Math is in Section 4.
Market Opportunity
Most aspiring authors think the bottleneck is writing. It isn't. The bottleneck is picking a topic narrow enough that 500 people will pay for the answer, and broad enough that those 500 people are findable on Amazon search. People who write "How to Be Happy" lose. People who write "The 30-Day Switchboard Apprentice Study Guide for the IBEW Aptitude Test" win.
Amazon Kindle Direct Publishing pays a 70% royalty on e-books priced between $2.99 and $9.99, and only 35% on books outside that band (KDP Royalty rates). Almost every self-published author plays the same pricing game. Winning is about which shelf you stand on, not how loudly you shout.
The professional and how-to corner of that shelf is where the real money lives. Buyers in tight niches — exam prep, trade certifications, specialized hobbies, B2B skills — will pay $14.99-$24.99 for a book that solves a problem worth $500 to them. Fiction romance authors compete with 10,000 new releases a month. The "Florida Real Estate Sales Associate Exam Cheat Sheet" competes with maybe 30 books, and half of them are out of date.
Start with this idea — free signup, no card required.