AlejandrIA · Artificial intelligence: theory and practice

Artificial intelligence: theory and practice

Original technical books and courses on artificial intelligence, LLMs, machine learning and deep learning, from theory to application. Mastering a tool requires understanding how it works from the inside, so the focus is on the fundamentals that remain relevant as technology evolves. In-depth content in English, Portuguese and Spanish, with constant updates, for professionals from any field.

Catalog

01 book · courses coming soon

Digital book · PT / ES / EN

Theoretical Foundations of LLMs

AI sounds equally confident whether it's right or making things up. This book opens the mechanisms behind any LLM, from tokens and attention to RAG, agents, and security, so you understand why it errs and gain the judgment of when to trust, verify, or intervene. No programming experience required.

For technical professionals, researchers, and consultants who use AI in high-impact work, where judgment matters.

16 modules · trilingual · original technical figures

About the book →

Upcoming materials New books and technical courses are in production. Each will have its own page here in the catalog.

Technical content, from theory to practice.

In depth

We show how tools work from the inside, not just step-by-step screenshots. The focus is on understanding the why.

Trilingual PT · ES · EN

All material is written in Portuguese, Spanish and English, with the same content across all three languages.

Focus on fundamentals

We prioritize concepts that remain relevant when the tool's version changes.

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