
The Claude AI Bible
2026 edition · Master Claude in your daily work
View on AmazonAbout me
AI trainer, author of the best-selling book on Claude AI, and founder of two SaaS products. I live in Madrid and work in English, French and Spanish.

5+
years with generative AI
2
SaaS products built
31,700
LinkedIn followers
3
working languages
My career has never followed a straight line. I've worked as an optician, salesperson, French teacher, translator and interpreter, SEO consultant specialising in link building, and website creator — first with WordPress, then with other technologies. I've also worked in professional kitchens as a cook, chef de partie and head chef, as well as a home cook and private chef. Every role taught me to understand a new environment quickly, adapt, and turn a concrete need into a useful solution.
Working for myself has given me a complete view of business: accounting, organisation, marketing, production and coordinating with different people. Today, artificial intelligence connects all those experiences. It allows me to work across many fields, spend less time on demanding tasks and create more value from every effort — the spirit of the Pareto principle applied to real work. That's what I want to teach and help put into practice: tangible support for greater efficiency, a better return on investment and, above all, a better quality of life.
Books
Writing about artificial intelligence forces you to research, test and continuously update knowledge and tools. That learning is directly transferred to training sessions.

2026 edition · Master Claude in your daily work
View on Amazon
The complete guide to Anthropic's most powerful model

ChatGPT, Claude and Gemini explained in simple terms
I've built and launched two SaaS products. I've written a best-seller on Claude AI. I run my websites, my marketing and my courses. Alone. AI doesn't do my work for me: it lets me work with more precision, in less time, and keep track of more than one person could otherwise handle.
Two platforms built and launched, including DelfOnline.
I position my sites on Google and in AI answers.
AI training for teams, in French and Spanish.
What I do alone, a company of 10, 20, 50, 100 or 500 people can multiply. Each person has their own AI workspace. Those workspaces talk to each other across departments: finance with sales, marketing with customer service, leadership with everyone. Information flows, repetitive tasks disappear, and the company moves forward in two directions: deeper within each function, and wider across departments. It's possible today, and it's what I help set up.
Every person has their own AI workspace. Every department talks to the others.
It's the value behind all my work. An hour saved on a repetitive task only matters for what it becomes: a customer better served, a decision better thought through, an evening with your family. I don't train teams to go faster. I train them so they can choose what to do with their time.
Thierry Gustin
I test every tool on my own projects before I recommend it.
LinkedIn