Books

Stop writing the workarounds. Modern CSS shows the native features that replace them, with working code you can run.

A visuals-first guide to cracking data engineering interviews — SQL, data modeling, PySpark, Spark, Kafka, Databricks and Snowflake — and doing the work in production.

Data platform interviews test CDC, streaming, warehouse modeling, and trade-offs two levels deep — no generic system-design book covers it. This one does: 50 full mock interviews, 122 rapid-fire Q&A, and the framework that turns a vague prompt into a hire.

Stop treating neural networks as magic. Starting from a single dot product, this book derives every step to Backpropagation with Matrix Calculus, then turns the math into working Python. No frameworks, no skipped steps. Written for developers who want to know why the equations work, not just how to call them.

Many Linux System Administrators struggle with Ansible, I created a book that gives you copy-and-paste Playbook code and solves the most common errors that you could use to save time every day. 

A complete foundation for Statistics, also serving as a foundation for Data Science, that introduces inference using randomization and simulation while covering traditional methods. Leanpub revenue supports OpenIntro, so we can provide free desk copies to teachers interested in using our books in the classroom. More resources: openintro.org.

Turn AI into leverage, engineer your first $29 sale, and prove your business is real - in days, not months.

This book contains answers to the most common questions regarding arc42 - the pragmatic template for communicating software architectures.

The book is free — pay-what-you-want with a $0 minimum. If you find it useful and want to contribute, you decide how much. If you can't or don't want to, just download and read without worry: the Creative Commons BY-SA 4.0 license even allows you to redistribute and modify it, as long as you credit the source and maintain the same license.

The songbook includes very simple, popular children’s and folk songs. All 70 songs in this book have been written without using the classic music score system because it is for the absolute beginners who can not read sheet music. This book is aimed at those who want to add popular melodies to their experimentation.

The book to bridge DevOps and MLOps

The definitive guide to programming on the ESP32.

AI can analyze a thousand charts in seconds. So why can't it reliably make you rich? Discover the uncomfortable truth about AI trading, the mistakes most people overlook, and what these powerful tools can actually do for you.

Understand DNS through clear visual explanations of name resolution, zones, records, caching, security, and practical operations.

Understand how Model Context Protocol hosts, clients, and servers work together. Visual explanations introduce capabilities, message flows, transports, security boundaries, and reliable MCP engineering.