The only issue i have with this, is that it doesn't cover the kanto half of the journey so it is best to purchase both this and the kanto guide together. Also the full pokedex is only in the kanto guide book , the pokedex in this book only has the johto pokedex and also doesn't mention which tm/hm's a pokemon can learn. Apart from that though it is a thorough guide for the first half of the game.