Talk to customers before you build.

A short, practical guide to customer discovery: what it is, why it matters, and how to run your first round in two weeks.

The customer discovery field guide.

Five short chapters with a hypothesis worksheet, a funnel calculator, a question bank and a 14-day plan. Free, about 15 minutes to read.

  • Why discovery mattersWhat customer discovery is, and what skipping it costs.
  • Write your hypothesesA fillable worksheet for customer, job, problem, fix, and value.
  • Find people to talk toA funnel calculator, where to look, and an email to copy.
  • Interview, then learnA question bank, three rules, and what to do with the answers.
  • Your 14-day planA first round, day by day, and how Tymes can take the busywork.
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What’s inside.

Five chapters, in brief. Written for founders, product managers and researchers who run discovery themselves. The PDF is interactive: type into the worksheet, change the calculator, and save it to keep your answers.

  1. Why discovery mattersCustomer discovery is the scientific method applied to your business: write down what you believe, then test it in real conversations before you build. Skip it and the market tests you anyway, with months of runway instead of a 30-minute call.
  2. Write your hypothesesA hypothesis is a belief you can prove wrong. The worksheet asks for five: who the customer is, the job they do, what hurts, your fix, and what they gain. Each line tests one thing and can turn out false.
  3. Find people to talk toMost founders underestimate how many people they need to reach: 20 interviews can take 250 contacts. Start with your warmest network, ask every person for two intros, and aim for the manager who does the job, not the CEO.
  4. Interview, then learnGet stories, not opinions: ask about the last time it happened, then ask why. Never pitch, and go in pairs so one person takes notes. After each round, mark every hypothesis true or false, and change who you talk to next.
  5. Your 14-day planA first round fits in two weeks: plan on day 1, find people on days 2 to 4, interview 8 to 12 people on days 5 to 12, and learn on days 13 and 14. Then start the next round sharper.

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