Describe a book that you enjoyed reading because you had to think a lot

A few months ago, I picked up a copy of 'Thinking, Fast and Slow' by Daniel Kahneman. It had been gathering dust on my bedside table for ages, but I finally decided to dive into it during a long-haul flight to Tokyo. I’d heard so many people mention it in intellectual circles, and I was genuinely curious to understand the cognitive biases that govern our decision-making processes. The book explores the duality of our minds: System 1, which is impulsive and intuitive, and System 2, which is deliberate and logical. Reading it forced me to constantly pause and reflect on my own past choices. It made me scrutinise why I sometimes react emotionally to stressful situations rather than stepping back to assess the facts. I found myself thinking deeply about the nature of human rationality and how easily our perceptions can be skewed by mental shortcuts. Every chapter felt like a workout for my brain. I thoroughly enjoyed the experience because it felt incredibly empowering to gain a toolkit for understanding my own mental pitfalls. It wasn't just a passive reading experience; it was a collaborative process between the author's research and my own life reflections. By the time I landed, I felt as though I had developed a sharper lens through which to view the world. It was a challenging read, certainly, but the profound clarity it offered made every page worth the effort, as it fundamentally shifted my perspective on how we form opinions and make judgments in our daily lives.