This book is well written and nicely laid out. The manual that comes with the camera contains pretty much the same information, but the layout of the manual is poor, with small type and black and white photos. This book on the other hand has good use of colour and explains the complexities of the Olympus Pen very well. You get some hints and tips on general photography technique along the way too. A thoroughly worthwhile companion for your Olympus PEN EP1 - It would probably also be useful if you have an EP2 as many of the features of both models are the same.
Recommended!