A short and to the point book which goes through the psychological obstacles to dictations, practical how-tos, and then, especially useful, some specific material for you to 'train' or practice with which I think really gets past another obstacle many of us have, which is where to start. I really like the pragmatic, practical side of things and it's inspiring me to finally have a go at dictation, which I've really been uncertain about in the past. Recommended if you want to add dictation to the way you write (I note add, rather than replace, because a key point is that it's a way of using pockets of time where you can't use a computer, which I think it also quite useful positioning).