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Learn the skills behind great product decisions

Short, free courses for product managers and marketers. A mentor, real cases and instant AI feedback on every answer.

See how it works

Pick a topic and try lesson 1 right here

Customer interviews · Lesson 1

Maya built an app for cat owners and shows it to a friend.

Maya: Would you use my app?

Olivia: Sure, absolutely!

Can Maya trust that “yes”?

Try it now

16 courses · 455 lessons · No sign-up to start · No paywall · Certificate for every course

  • Lessons as a conversation with a mentor, one step at a time
  • Instant AI feedback on your written answers
  • Module exams and a certificate for every course

How it works

Short stories you tap through on your phone. No lectures, no videos, no pressure.

  1. Step 1 of 6

    Each step is a few lines: a scene from work or one clear explanation. A minute of reading, not a lecture.

  2. Step 2 of 6

    A quick question comes straight after. Tap an answer and see at once why it’s right or wrong.

  3. Step 3 of 6

    Stuck? Open the theory card right inside the task: the rule, examples of what to do and what not to, often a diagram. Each lesson’s theory also reads as one article.

  4. Step 4 of 6

    Answer wrong and you’ll see why right away. The task comes back at the end of the lesson for another try.

  5. Step 5 of 6

    Write an answer in your own words. The AI reviewer points to the weak spot, so your next try lands. Free, with a login.

  6. Step 6 of 6

    Lessons add up to modules. Finish a course and get a certificate with a link anyone can check.

Where do you want to start?

Every course opens straight on lesson 1, no account needed. Log in later to save your progress, get AI feedback and take the exams.

All courses
A cartoon cat sits next to a laptop with bar charts and an open box of cat food.
  • Trainer
  • Product managers
  • Marketers

Statistics for Product Managers and Marketers

Read metrics honestly, run A/B tests that hold up and stop being fooled by averages.

24 lessons · ~16 h 27 min of learning

Lesson 1: Mean, median and mode: the typical value

Start the courseWhat's inside
A product team member and a cat owner talk over coffee at a small table, with a cat on a blue cat-food box between them and an orange notebook.
  • Trainer
  • Product managers
  • Marketers
  • Founders

Customer Development: Talking to Customers

Run customer interviews that give you facts, not compliments, and tell real demand from politeness.

15 lessons · ~10 h 11 min of learning

Lesson 1: Why “do you like my idea?” is useless

Start the courseWhat's inside
A cat walks along a subway-map line of blue circles that branches and rejoins in front of a light-blue browser window, with an orange circle at the tip.
  • Trainer
  • Product managers
  • Marketers

Git and GitHub for Product People

Read a repository, review a pull request and follow a change to release, all in the browser.

15 lessons · ~9 h 19 min of learning

Lesson 1: Why teams keep history: version control without fear

Start the courseWhat's inside
A cat walks a winding road towards a flag on a hilltop, passing blank signposts and blue boxes of cat food, under an orange sun.
  • Trainer
  • Product managers
  • Marketers

Outcome-Based Product Roadmaps

Build a roadmap around outcomes, prioritise in the open and win buy-in without promising dates.

15 lessons · ~10 h 42 min of learning

Lesson 1: What a roadmap is (and isn't)

Start the courseWhat's inside
Two founders, one at a laptop and one with an orange wrench, beside a small garage with a light-blue car on a lift and a pot of growing coins.
  • Trainer
  • Product managers
  • Marketers
  • Founders

From Idea to Profitable Product: Building Without Investors

Take a software product from idea to profit without investors, deciding each step on your own numbers.

30 lessons · ~14 h 18 min of learning

Lesson 1: Your own money or investors?

Start the courseWhat's inside
A teenager in a headset takes a video lesson on a laptop, next to a stack of coins, a piggy bank and a desk calendar, with an orange arrow rising behind them.
  • Trainer
  • Product managers
  • Marketers
  • Managers
  • Founders

Finance for Product People: From Unit Economics to Business Cases

Put numbers behind product decisions: unit economics, P&L, cash flow, NPV and budgets on realistic data.

32 lessons · ~16 h 20 min of learning

Lesson 1: Contribution margin per unit: what one lesson leaves

Start the courseWhat's inside
A big phone shows a receipt split in two halves next to friends sharing a pizza, with a funnel, a line chart and a cell grid floating above.
  • Trainer
  • Product managers
  • Marketers

Product Analytics: From Data to Decisions

Turn product data into decisions: honest metrics, funnels, retention, A/B tests and LTV on realistic data.

32 lessons · ~17 h 36 min of learning

Lesson 1: Events, properties and users

Start the courseWhat's inside
Two parents and a toddler at a kitchen table look at an open notebook, next to a phone, a small house-shaped money box, a cup of tea and a savings jar with an orange lid.
  • Trainer
  • Everyone

Personal Finance: Budget, Safety Cushion, Debt and Investing

Take charge of your money: a spending plan, a safety cushion, the real cost of loans and investing without illusions.

32 lessons · ~11 h 1 min of learning

Lesson 1: Tracking a month without a spreadsheet habit

Start the courseWhat's inside
An open grid notebook with a blue pencil, surrounded by a ruler, a compass, a bell curve, a line chart and an orange calculator.
  • Trainer
  • Product managers
  • Marketers

Math for Statistics and Unit Economics

Build the maths behind statistics, finance and product analytics, from percentages to probability and growth.

36 lessons · ~17 h 17 min of learning

Lesson 1: Order of operations, ratios and multiples

Start the courseWhat's inside
In front of an office building, a seller with a laptop shakes hands with a client team while one employee signs a document with an orange pen.
  • Trainer
  • Marketers
  • Founders
  • Managers

B2B Marketing and Sales: Win Your First Company Customers

Win your first company customers: the buying committee, an honest pipeline, discovery calls, pricing from the buyer's economics and discounts you trade, not give away.

32 lessons · ~14 h 18 min of learning

Lesson 1: One deal, many people: who is in the buying committee

Start the courseWhat's inside
A team lead in an orange sweater holds an open laptop, surrounded by four smiling coordinators with headsets at their laptops, with a chat window, books and a graduation cap above them.
  • Trainer
  • Managers
  • Founders
  • Everyone

From Specialist to Manager: Your First Year Leading a Team

Lead the people who do the work: one-to-ones, feedback that changes behavior, clear delegation, healthy meetings and handling conflict and overload.

32 lessons · ~14 h 41 min of learning

Lesson 1: Your output is now the team's output

Start the courseWhat's inside
A laptop shows a tutor in a video lesson, surrounded by a parent with a child, a teen with a tablet and an adult learner, with a target, a map with a dashed route and an orange megaphone nearby.
  • Trainer
  • Marketers
  • Founders

Marketing Strategy: Who to Win and How

Turn a string of campaigns into a plan: segments from your own data, a difference you can prove, channels judged by what a paying customer really costs, and a one-page marketing plan.

32 lessons · ~14 h 46 min of learning

Lesson 1: Four choices, not a stream of ads

Start the courseWhat's inside
A tutor and a student smile on a laptop video lesson, with a blank orange price tag hanging from the laptop next to a balance scale and a stack of textbooks.
  • Trainer
  • Founders
  • Marketers
  • Product managers

Pricing: Set, Package and Raise Your Prices

Set a price you can defend: the floor your costs allow, the ceiling buyers’ alternatives set, clear plans, honest discounts and price rises that keep trust.

32 lessons · ~14 h 47 min of learning

Lesson 1: Three anchors: cost, alternative, value

Start the courseWhat's inside
Two people work at a planning board of connected blank cards, next to an orange rocket on a launch pad and a desk with a pendulum and an atom model.
  • Trainer
  • Managers
  • Founders
  • Everyone

Project Management Without the Bureaucracy: Run One Project from Brief to Closure

Run a project with a deadline without drowning in process: a one-page brief, the critical path, estimates in ranges and a short risk register.

32 lessons · ~14 h 5 min of learning

Lesson 1: Project, operations or product work?

Start the courseWhat's inside
A coach points to a large practice-account phone with a calm candlestick chart, two learners stand beside it and a stone path leads up to it.
  • Trainer
  • Everyone

Trading Basics: How It Works, How Not to Lose Everything

See how trading really works on a practice account: costs, orders, the loss you set before a trade, and why a plan matters more than any single call. Educational, not advice.

32 lessons · ~16 h 2 min of learning

Lesson 1: Trading vs investing: two different games

Start the courseWhat's inside
A person waters a small sapling; a winding path leads past gentle hills to a large tree, with a widening pale-blue band of possible growth behind it.
  • Trainer
  • Everyone

Long-Term Investing: Index Funds, Risk and Your Own Behavior

Learn how long-term investing really works and judge any fund, app or plan with numbers. Count real returns after inflation and devaluation, see how far and how long a portfolio can fall, find out why broad, cheap index funds are hard to beat, add up every cost, build a simple stock and bond mix, keep your own behavior from costing you, and check what matters when you invest from Ukraine. Educational, not financial advice.

32 lessons · ~13 h 50 min of learning

Lesson 1: Saving, investing, speculating and the real return

Start the courseWhat's inside

Why stories work

Get comfortable and tap along. Learning here isn’t meant to feel like work.

  1. A story sticks

    You’ll remember what happened to the hero long after a list of rules has faded.

  2. Someone else’s mistake teaches for free

    You watch the hero slip up and see what it cost. Next time you won’t repeat it.

  3. Small steps don’t tire you

    A few lines, a tap, a few more lines. Lie back and go at your own pace.

Questions before you start

Is it really free?

Yes. Every lesson, exercise, AI check, exam and certificate is free. There's no trial and no paywall.

Is it just text? No video?

Yes, on purpose. Lessons are short dialogs with a mentor and scenes from work, with quick exercises in between. You read at your own pace on any screen, stop at any step and pick up where you left off. No video to sit through, no sound needed.

Who checks my answers?

Quizzes are checked instantly, right in your browser, with an explanation. Written answers are checked by an AI reviewer: it gives a score and points out what to improve. AI checks are free and need a login, so your answers and progress are saved.

Do I need an account?

Not to start: lessons and quizzes work right away. Log in with email or Google (also free) to save your progress, get AI feedback on written answers and take module exams.

How much time does it take?

Most lessons take 15–40 minutes, and you can stop at any step. A whole course takes 3 to 12 hours.

Who is it for?

Product managers, marketers and the people who work with them: founders, analysts, designers. You don't need a maths or coding background.

Do I get a certificate?

Yes. Finish every lesson of a course and pass its module exams to get a certificate with a link anyone can check.

Your first lesson is one click away

Pick a topic and start now. It's free, and you don't need an account.