Limitless

Found a lot of the tidbits in this genuinely helpful but I did have to skim a lot, especially toward the beginning. The constant celebrity name-dropping and self-advertising became tiresome very quickly. I've seen a lot of reviews saying he has essentially stolen and/or consolidated a lot of previous work in the field, but can't speak to that myself. I'll definitely be going through and working on a lot of the exercises, but I also plan to pick up some books by Tony Buzan (who other reviewers have recommended). There really is a lot to take away here, just be prepared to slog through some parts and focus on what you feel like will be most beneficial to you.