Focuskid, you do not need this or that to "learn to visualize", or anything, really. You are, simply, and it remains for you to realize your own self-nature. I was once caught up in this or that technique-- some helpful, some not-- if visualization is what you want than you can teach it to yourself: establish dream recall, remain in the hypnagogic state and observe the images there, relax deeply and allow images to come then interact with them simply and consciously. Verbal description, as in ISing, can come in handy but the attentive self-observation and interaction is foremost for unfolding your self-power-- for that you must drop this and that, and simply practise without "practising".

This message goes for one and all,
Kristoff "Faustus" Olafsson