This is a big book. Many pages, with quite a small font face. To be honest, I have only been reading it for a couple of weeks, but have already picked up a lot from it. It does indeed have lots of concrete, and proven, strategies for learning foreign vocabulary. It is also full of charts, statistics, and studies demonstrating what works in practices and what only sounds good in theory. Since I am only a part-time language learner, I have to admit the book is a bit dry and academic for me. Still, it is clearly well researched and far more comprehensive than any other books I have in the area. Recommended, if you can put in the many hours it takes to read it.