Recep Dayi

Recep Dayi writes books for people who want to look more carefully — at exams as well as at themselves.

With over 30 years of experience as a CTO, CIO and CISO, and years of working with aptitude and selection processes, two book series have emerged that may look different at first glance but follow the same principle: precise questions matter more than quick answers.

Years ago, my own child stood before an entrance examination. The available textbooks weren't bad — but they didn't match the actual exam. So I sat down and wrote questions myself. From those first notes at the kitchen table grew more than 40 preparation books in 12 languages — and eventually books about how all of us must prepare for a much larger examination: life in the age of artificial intelligence.

📘 Preparation books for entrance exams and assessment centers: TestAS, Mensa Test, Raven Matrices, AON, SHL, and recruitment tests of major corporations such as Bayer, Deutsche Bank, BMW, Siemens, and KPMG. Over 40 titles in 12 languages — from German and English to Japanese, Spanish, Turkish, and the Scandinavian languages.

📗 Books on humans and technology: "The End of the Beta Era" and "The Master-Learner" show how we can preserve clarity, identity, and agency in the age of artificial intelligence — not against technology, but in conscious symbiosis with it.

For over twenty years I have been engaged with the art of asking questions — whether in aptitude tests, assessment centers, or the decisions of everyday life. What makes a question difficult is not the question itself, but how many people accept the wrong options as correct. This insight shapes every one of my books, from the earliest exam volumes to my work on the AI era.

Practice is a step toward mastery. Every question you solve and every mistake you make brings you closer to what you are actually seeking: not just the right answer, but a clearer view. Patience and persistence are the keys.

My background: Over 30 years as an IT executive (CTO, CIO, CISO) in the digital transformation of large organizations. Earlier participation in national science competitions with strong placements. A father who experienced firsthand — through his own child — the gap between school preparation and actual selection procedures, which led to writing the first preparation books.

My concern is not sales, but impact. All royalties from my books go to a scholarship fund for students — because the most important investment remains the one in young people.

If one of my books has helped you, please write an honest review. Your sincere feedback helps other readers more than any advertisement — and it illuminates my path so I can continue to support you on your journey toward clarity.