Gradient Divergence, home

Publisher · Montréal, Québec

Books on agentic AI, from first principles to production

Gradient Divergence publishes Fatih Nayebi’s Foundations of Agentic AI books: a retail volume, now in its third edition, and the two volumes of Foundations of Agentic AI Systems. Each book has a public companion repository, and what it prints comes from there.

Autonomy should rise only as evidence rises.

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Cover of Foundations of Agentic AI for Retail, Third Edition, by Fatih Nayebi: white price tags hanging from a marigold rail on a lagoon-teal ground Cover of Foundations of Agentic AI Systems, Volume I: Models, Learning, and Decisions, from First Principles, by Fatih Nayebi, on a navy ground Cover of Foundations of Agentic AI Systems, Volume II: Agents, Operations, and Governance, in Production, by Fatih Nayebi, on a wine-red ground

Catalogue

The books

Three books in the Foundations of Agentic AI series, published in October 2026.

Third Edition · October 2026

Foundations of Agentic AI for Retail

Designing, Building, and Operating Retail AI Agents, from First Principles to Production

When should a retailer hand a decision to software?

Chapters: 14, in five parts

The paperback in other Amazon stores: Amazon CA · Amazon UK · Amazon DE · Amazon FR · Amazon IT · Amazon ES · Amazon JP

Earlier editions: Second edition (2026), First edition (2025)

The author

Fatih Nayebi

Fatih Nayebi is Assistant Professor in Information Systems at McGill University, where since 2019 he has taught the five graduate courses these volumes hold: Enterprise Data Science, Machine Learning in Production, Introduction to AI and Deep Learning, Applications and Architectures of Deep Learning, and Designing and Building Agentic AI Systems. As founder and CEO of OODARIS AI, he builds real-world, production multi-agent systems that make autonomous decisions, combining machine learning, ML engineering, deep reinforcement learning, operations research and software engineering, and that act only within the authority they have earned.

fatihnayebi.com

Contact

Permissions, errata and code

Permissions and inquiries

Write to the same address about rights and translations, course adoption, or copies for a team.

Errata and companion code

Each book’s code is public on GitHub, in the gradient-divergence organisation. To report an error in a book, open an issue in its repository: