As part of my training I am working through all the examples of Lev Alburts book Comprehensive Chess Course Volume 2 . I have just reached the halfway point Chapter 8. Each chapter has some variety:questions, tactic problems, endgames examples and minature games. I do enjoy the variety as I find studying just endgames too boring. I plan to work through all the problems in this book multiple times although I don't intend to do it 7 times. I also picked up Alburts Just the facts endgame book for reference and future study. I like Alburts book layout and writing style.