valuable lessons

I was busy in one of my training courses explaining some concepts related to self-development. I referred to my famous book, The Ten Habits of Highly Effective People, and I said to the participants: If anyone would like more information on the subject, he can check the book. At that moment, one of the participants said: Thank you for referring us to The Ten Habits. I have read it. It is a wonderful book, but it is long and extensive, and many people no longer have enough time or interest to read large books, despite their importance.