Simulation Resources
Here's the thing: the best way to build trust is to give value first. Everything on this page is free. Why? Because learning simulation shouldn't require a corporate training budget. And frankly, if these resources help you solve a real problem, you'll remember where you found them.
Book: Practical SimPy Guide
The official SimPy documentation tells you what the functions do. This guide shows you how to actually use them. It covers SimPy essentials, queuing theory, visualisation techniques and the best practices I've learned from a decade of building real models. Keep it open while you code.
"I have worked extensively with simulation tools throughout my career. Harry's guide to SimPy provided clarity and practical insights beyond what I've encountered in official documentation. I believe this guide will be highly valuable to professionals and researchers alike." - Prof. George Lipovszki, Associate Professor of Simulation, Computer Controlled Systems and Signal Processing
"I really enjoyed reading your guide as it provides really structured overview especially compared to SimPy's own documentation. Cannot wait to see more of your guides." - Oguzhan Inal, Industrial Engineer
Also available for purchase on Amazon.
Masterclass: Become a Simulation Expert
In 40 minutes, you'll understand why I abandoned expensive commercial simulation software and how you can do the same. I'll walk you through a live SimPy demo, share the model planning framework I use on every project, and explain how to position yourself as the go-to simulation expert in your organisation. Join my email list for access.
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Book: Vibe Modelling
Build production-grade simulations with AI assistance. Learn how to leverage Claude and other LLMs to accelerate your simulation development workflow while maintaining engineering rigour.
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Book: The Ralph Loop
The first comprehensive guide to autonomous AI coding with fresh-context iteration. Transform context degradation from a bug into a feature. Theory, practice and troubleshooting for Claude Code and beyond.
Learn MoreConnect with the Community
Simulation can be lonely work. You build something clever, it breaks in a baffling way, and there's nobody in the office who understands why you're staring at a traceback. These communities are where practitioners share problems, solutions and occasionally commiserate about stubborn bugs:
- r/SimPy Subreddit — Active forum for SimPy users. Good for technical questions.
- Simulation in Python LinkedIn Group — Professional networking and industry discussions.