Something not mentioned on learning-mind.com, is I really like the way I can read and study physical books multiple times, and I can see my evolution in study right in the book. The first time I read a book, its pretty much just me and the highlighters. Full disclosure, I do color code, but good ole fashion yellow is my default. The second time through I tend to annotate key words in the margins. I identify quotes in the book that I may want to use at some point. The third time I am looking to summarize key take-aways at the chapter. If the text causes me to ask a major question, or triggers a personal ah-ha, I write that down on a transparent lined sticky over the section of text that triggered it.