You've done the courses. Watched the videos. Still can't build from scratch.
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The three capabilities that define the modern ML practitioner.
305+ lessons and over 3,060 questions live today. Content released weekly.
3 learning paths · Live now
Multiple learning paths depending on your goal - learn to code from scratch, tackle data science libraries, or prepare for PCEP certification.
4 learning paths · 2 live now
Mathematical foundations, linear algebra, calculus, and probability & statistics. From high school to ML-ready.
1 learning path
The algorithms behind ML - understood from the inside out, not just imported.
You watched, you didn’t do
Passive videos feel productive. But nodding along doesn’t build the fluency to solve problems independently.
You skipped ahead too fast
Without prerequisite enforcement, you built on shaky foundations. Now the cracks show every time.
You ‘passed’ without mastering
70% is a pass on most platforms. That 30% gap compounds into confusion and self-doubt.
You got stuck with no way out
No feedback when confused. No support when stuck. Just you and a forum post from 2019.
This isn't a motivation problem. It's a system problem. You need active practice, not passive videos - and a system that won't let you build on shaky foundations.
A knowledge graph maps every dependency. You can’t attempt eigenvalues until you’ve proven you understand matrix multiplication.
Spaced repetition brings topics back before you forget. Six months later, you’ll still have it.
Not a chatbot. Not a forum. Direct access to the person who built the system.
Diagnostic tests map your existing knowledge. You only study what you actually need - no sitting through basics you’ve already mastered.
0:00 / 1:17

I'm Mark. I spent two years building Nodeledge because every platform I tried was either passive videos that didn't stick, or textbooks that assumed I already knew the thing they were supposed to teach me. So I built a system grounded in learning science that demands genuine mastery and makes it achievable.
Every subscriber gets direct access to me - email me directly and I read and reply to every message. You hear back from the person who wrote the lesson, not a chatbot.
- Mark
Professionals building genuine understanding with Nodeledge.
Trusted by data scientists at Cerberus, Faculty AI, The Trade Desk, and more
“Finally - an EdTech platform that isn't selling snake oil! As someone deep in the Data Science world, I'm honestly stoked to see what Mark has built with Nodeledge. No BS videos, no false promises of 'learn Python in 24 hours'. Instead, you get a meticulously crafted learning path that actually respects how our brains work.”


Dr. Gary Willis
Staff Data Scientist | The Trade Desk
“Nodeledge has the theory vs. practice ratio just right - to learn to code well you need much more of the latter, which it has.”
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Dr. Setrak Balian
Machine Learning Engineer | Cerberus Technology Solutions
“The innovative use of graphs to map out prerequisites is a game-changer. It eliminates the guesswork, allowing learners to focus on their goal and not spend time on irrelevant topics.”
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Hannan Saddiq
Research Scientist | Faculty AI
“The knowledge graph provides a perfect balance of guidance and flexibility while never making you feel overwhelmed. Coupled with the extensive practical exercises, Nodeledge is the most accessible resource for learning Python I've tested.”
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Roberto Catanuto
Mathematics Teacher | Education
“Nodeledge's Python path pulled me out of a mental rut big time. I started thinking I'd never get CS or algorithms, but working through Nodeledge gave me small wins that stacked up. I'm not drowning anymore - it's given me a foothold to keep climbing.”
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Owen Warwick
Policy Adviser | Department for Energy Security and Net Zero
“I have thoroughly enjoyed learning through Nodeledge. The gradual build up of concepts through practice is how I learn best and I have made genuine improvements in not just my understanding of Python but also how to think computationally. In an era of fast superficial learning which doesn't last, Nodeledge is a real antidote for genuine long term skill acquisition.”
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Manuel Arredondo
Mathematics Student | University of Colorado Boulder
“Nodeledge is amazing! Such a good platform and it's gonna have such a big impact. Keep it up man.”
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Your subscription includes every learning path, every new path we release, and direct access to me for support. This is not a tier with hidden limitations - it's everything.

Every plan includes direct support from Mark Worrall
Founder & Lead Instructor
£29
Subscription. Cancel anytime. Full access, billed monthly.
£249
Subscription. Cancel anytime. Get over 3 months free vs monthly.
£299
One-time payment. 12 months of access. No subscription.
One payment. Learn forever.
£1,199
One-time payment • No recurring fees • Forever
Lifetime access plan extra benefits:
Everything in annual - including Mathematics for ML and Core ML when they launch. No extra cost, ever.
Founder strategy check-ins - dedicated quarterly session to optimise your learning roadmap.
Help shape the future - input into upcoming features and new learning paths.
Priority support - Expedited responses to your technical and platform questions.
Early-adopter pricing. Only 50 lifetime spots available at this price. When they're gone, this tier closes forever.
Everything you need to master the fundamentals and beyond
Mastery-gated progression - you can't move on until you genuinely understand. No 70% passes.
Direct access to the founder - email the person who wrote every lesson and get a reply. Not a chatbot.
In-browser coding environment - write and run real Python in your browser. No local setup, no excuses.
Active practice, not passive videos - every lesson demands you solve problems, not just watch someone else do it.
Every learning path included - Python, Mathematics, ML - current and future. One price.
Spaced repetition that sticks - the system brings topics back before you forget. Six months later, you'll still have it.
Not loving it? Just email us within 30 days and we'll refund you. No awkward questions, no hassle.