Your Roadmap to a Tech Career

Switching careers doesn't require a CS degree or expensive bootcamp. These free, self-paced learning paths give you the knowledge and skills that employers are actually hiring for.

100% Free Self-Paced No Prerequisites Career-Focused

Pick Your Path Into Tech

Each path takes you from zero to job-ready knowledge. Work through the books in order for the best experience.

Into AI / Machine Learning $120k–$200k+ avg salary

From using AI tools to building production AI systems

1 Working with AI 316 pages Start by mastering the AI tools everyone is using. Learn prompt engineering, AI-assisted productivity, and how to integrate ChatGPT, Claude, and Copilot into your workflow.

2 Vibe Coding 316 pages Build real software without years of coding experience. Use AI coding assistants to ship full-stack applications and understand the development process.

3 AI Engineering 307 pages The deep technical foundation. Transformers, LLMs, neural networks, MLOps, and production AI systems. This is what separates you from the crowd.

Into Cybersecurity $90k–$160k+ avg salary

Zero to hero — hands-on security skills, certs, and a career path

1 Ethical Hacking 318 pages The complete zero-to-hero cybersecurity textbook. Learn penetration testing, vulnerability assessment, network security, and web application security using industry tools like Kali Linux, Metasploit, and Burp Suite. Covers career paths, certifications (CEH, OSCP, CompTIA Security+), and building your security lab.

Into Data Analytics $75k–$130k+ avg salary

Python, data analysis, and practical portfolio projects

1 Python for Business 298 pages Learn Python from absolute zero. Automate reports, analyze data with pandas, build dashboards. Designed specifically for people without a programming background.

2 NFL Analytics 182 pages Apply your Python skills to real-world data. Build prediction models, create visualizations, and develop a portfolio piece that demonstrates practical data analysis skills.

Into COBOL $85k–$150k+ avg salary

The hidden gem: high demand, low supply, and serious job security

1 Learning COBOL 322 pages The 65-year-old language that still runs 95% of ATM transactions and 80% of in-person transactions globally. Most COBOL programmers are retiring, creating massive demand with very low supply.

2 Intermediate COBOL 334 pages Level up to enterprise-grade COBOL. Master file processing, embedded SQL, CICS, DB2, and legacy system modernization. Includes capstone projects to build your portfolio.

Your career change starts here

All 42 textbooks are free, self-paced, and designed for self-learners. No sign-up required.

Browse all 42 free textbooks