Look at your best 10 existing customers and find what they share. If you have no customers yet, define hypotheses and test fast — don't build a 60-slide persona deck before you've talked to 10 real people.
**If you have existing customers:**
Forget personas. Look at your real best customers (highest LTV, lowest support cost, fastest to close, most likely to refer). Ten real customers tells you more than any market research deck.
**Pull this data:** - Industry / company size / role title (B2B) or demographic / occupation / income (B2C) - What problem were they trying to solve when they bought? - What were they using before? - What was the trigger event that made them act? - How did they find you? - What almost stopped them from buying? - What do they value most about working with you?
If 6+ of your top 10 share a pattern (industry, company size, trigger event, prior solution), you've found your high-leverage segment. Double down on marketing to that pattern. Cut everything else for 6–12 months and see what happens.
**If you don't have customers yet:**
The persona-deck-before-customers approach has burned more startups than almost any other failure mode. Instead:
**Step 1:** Write down 3–5 specific hypotheses about who the customer is and what problem they have. "Independent dental practice owners with 1–3 chairs struggling with no-show rates" beats "small business owners."
**Step 2:** Find 20 people who match each hypothesis. Cold outreach (LinkedIn, industry forums, in-person events) and ask for a 20-minute conversation. Don't pitch — ask about their problem.
**Step 3:** After 30–50 conversations, the hypothesis that produced the most "yes I'd pay for this" / strong emotional pain responses is your target customer. The others get parked.
**The single test that filters real targets from imagined ones:**
Will 5 of these people give you their credit card today for a problem you haven't fully built the solution for yet? If yes, you've found your customer. If they all say "interesting, send me more info," you have a curiosity target, not a paying target — different thing.
**Why most "target customer" exercises fail:**
Founders pick the customer they want (largest market, highest deal size, most prestigious logo) instead of the customer they can actually win. Pick the segment where you have unfair advantage — domain expertise, network, geography, language, founder story — not the one your spreadsheet says is biggest.
- **What's the difference between marketing and sales?** — Marketing creates the conditions for sales — awareness, interest, qualified leads. Sales is the human conversation that converts a qualified lead into a paying customer. - **How do I write a marketing plan in one page?** — Six sections: target customer, primary problem you solve, your differentiator, three channels, three campaigns per quarter, measurable goals. - **What is positioning and why does it matter?** — The mental space your brand occupies in the customer's mind relative to competitors. Positioning is the single highest-leverage marketing decision you'll make. - **How much should a small business spend on marketing?** — Established businesses: 5–12% of revenue. Growth-mode businesses: 12–25%. Pre-product-market-fit: whatever cash you can afford to lose, focused on learning not scaling.