Dennis Irorere, a UK Global Talent-endorsed senior data engineer at Tripadvisor Inc., has released a new book titled Data for the Rest of Us, an accessible guide designed to help everyday people understand the growing role of data and artificial intelligence in modern life.

Based in Tripadvisor’s London office, Dennis has spent nearly a decade building large-scale data reporting, modelling, and analytics systems used by millions of users and powering products worth hundreds of millions of dollars. Beyond his commercial work, he has also contributed extensively to social impact and open-data initiatives across Africa and globally.

His work has supported public health interventions with eHealth Africa, civic and humanitarian mapping projects through OpenStreetMap and HOTOSM, and electrification planning initiatives under the European Union and German Government funded NESP II programme focused on energy access and efficiency in Nigeria.

Dennis is also the Director of Innovation and Development at GraphGeeks, one of the world’s largest vendor neutral communities focused on graph technology, data systems, and connected intelligence, where he helps lead learning, research, and community initiatives for thousands of global members.

He is also the co-founder of Unpatterned Labs, alongside Elijah Oyekunle, a senior software engineer at Cisco based in San Francisco, and Emmanuel Jolialya, a geospatial engineer with the United Nations based in Spain.

The book explores how data has quietly become one of the most valuable resources in the digital economy and the foundation upon which modern AI systems are built.

“In a world run by algorithms, predictive models, and AI agents, people interact with data every day without always realizing it,” Dennis said. “This book is about helping the rest of us understand those systems, ask better questions, and become more aware of how our digital presence shapes opportunities, decisions, and identity.”

According to him, Data for the Rest of Us is designed as an entry-level guide for non-technical readers, business professionals, students, and anyone curious about the invisible systems powering everyday experiences, from recommendations and online searches to financial systems and AI-generated content.

“You don’t need a PhD, a technical background, or a fancy computer to understand the age of AI,” he added. “You already interact with data every single day. The goal of the book is not to turn people into data scientists, but to help them become more data-aware, thoughtful, and empowered.”

The book also examines broader questions around digital identity, trust, ethics, the future of work, and the role emerging economies will play in the age of AI.

Dennis noted that half of the proceeds from the book will support STEM education initiatives and efforts to distribute copies to schools and underserved communities globally.

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