Four years ago, I read the Innovator's Dilemma by Clayton M. Christensen. It was a tough book to digest and understand. I would read the same page three to four times before I understood the concept. I am embarrassed to say sometimes I would even nod off mid page. This difficulty might be due to how the book is written similar to a research paper.

Recently I just finished The Innovator's Solution by Clayton M. Christensen & Michael E. Raynor and I encountered the same problem. Is there any advice for reading these types of books or do I just need to read more of these to get better at understanding and grasping complex concepts?