Physical vs digital copies offer different advantages, and for someone who's serious about mastering the material, it probably makes sense to consider having bo

Physical vs digital copies offer different advantages, and for someone who's serious about mastering the material, it probably makes sense to consider having both. For overall comprehension, my feeling is that the advantage of physical books is related to spatial memory, and seems related to "memory palace" techniques for memorization. I can physically recall pages of books I've read many years ago, but I really don't get the same thing from a digital copy. Being able to search within digital copies is a clear advantage. The markup/review software and document management system also makes a huge difference.