Courses

Explore our comprehensive free courses designed for all levels

AI & Machine Learning

Build intelligent applications with AI, LLMs, and machine learning

Beginner

ChatGPT Power User: From Beginner to Expert

Master ChatGPT from the ground up. Learn conversation techniques, productivity use cases, professional applications, and advanced features. Perfect for anyone wanting to use ChatGPT more effectively - the #1 question people ask.

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Beginner

Interactive Prompt Engineering Practice

Master the art of crafting effective AI prompts through hands-on exercises. Learn prompt structure, few-shot learning, chain-of-thought reasoning, and advanced techniques with instant feedback. Build real-world prompts for code generation, content writing, and data analysis.

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Beginner

AI Essentials: Understanding AI in 2026

Master the fundamentals of artificial intelligence without the technical jargon. Understand what AI is, how it works, and how it's transforming our world. Perfect for complete beginners, business leaders, and anyone curious about the AI revolution. No coding required.

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Beginner

AI for Everyday Life

Learn to use AI tools like ChatGPT, Claude, and Gemini in your daily life. No technical background needed. Master writing, research, productivity, and creative tasks with AI assistance.

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Advanced

Full-Stack RAG with Next.js, Supabase & Gemini

Master the principles, architecture, and core components required to build production-ready RAG applications. Learn to create custom knowledge chatbots using Next.js, Supabase with pgvector, and Google's Gemini API. Perfect for JavaScript/Next.js developers who want to integrate advanced AI features.

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Advanced

SQL Architecture in the AI Era

Master database internals, indexing, and schema design for modern AI applications. Learn how SQL databases power production AI systems at TikTok, Uber, and Netflix. Build RAG systems, feature stores, and high-performance pipelines with PostgreSQL and pgvector.

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Advanced

Building Professional AI Agents with Node.js & TypeScript

Move beyond chatbots. Build autonomous agents that work for business. Learn to create production-ready AI agents using JavaScript, TypeScript, Next.js, and the Vercel AI SDK. Perfect for JavaScript developers who want to build AI applications without learning Python.

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Programming

Learn programming languages and developer tools with hands-on practice

Beginner

Interactive SQL Practice

Practice SQL with hands-on exercises in your browser. Write real queries against a live database, get instant feedback, and build confidence through guided challenges. No setup required - start coding immediately.

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Web Development

Build modern websites and web applications

Beginner

Git & GitHub Mastery

Master version control with Git and GitHub. Learn branching, merging, pull requests, and collaboration workflows.

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Data & Analytics

Analyze, transform, and visualize data

Intermediate

Interactive JSON & Data Transformation

Master JSON parsing, manipulation, and transformation with hands-on exercises. Learn to navigate complex data structures, transform API responses, and build data pipelines in your browser.

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Finance & Investing

Master personal finance, corporate finance, and investment strategies

Intermediate

Financial Modeling & Valuation

Master the art of financial modeling and company valuation. Learn to build integrated 3-statement models, perform DCF analysis, conduct comparable company analysis, analyze precedent transactions, and understand LBO mechanics. Bridge theory and practice with hands-on modeling exercises. Perfect for finance students, career changers, and professionals seeking to formalize their skills.

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Beginner

FinTech & Digital Assets

Master the fundamentals of financial technology and digital assets. This comprehensive course covers digital payments, blockchain technology, cryptocurrencies, DeFi, and regulatory compliance. Designed for beginners, you'll gain practical knowledge to navigate the rapidly evolving world of modern finance.

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Business

Learn marketing, economics, and business fundamentals

Intermediate

Strategic Pricing Mastery

Master the art and science of pricing to maximize profitability. Learn pricing psychology, methods, policies, and execution strategies used by leading companies.

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Hospitality

Industry-specific courses for hospitality professionals

Intermediate

Hotel Finance

Master hotel financial management using the USALI framework. Learn revenue management, income statements, cost behavior, KPIs (ADR, RevPAR, GOPPAR), budgeting, cash flow, capital expenditures, and hotel valuation. Perfect for hospitality professionals and aspiring hotel managers.

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Intermediate

Tài Chính Khách Sạn

Khóa học toàn diện về quản lý tài chính khách sạn theo chuẩn USALI. Học về quản lý doanh thu, báo cáo tài chính, KPIs (ADR, RevPAR, GOPPAR), lập ngân sách, dòng tiền, chi tiêu vốn và định giá khách sạn. Phù hợp cho các chuyên gia ngành khách sạn.

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