This is the first part of two, from the series " Photoshop in depth" published by "NAPP" National Association of Photoshop Professionals, Scot Kelby will be explaining Camera Raw's 7 techniques you need to know

When you create a photomontage, you usually start with a background image. Adding new elements to that background is simple enough, but what if you want to change the time of day or the weather conditions in the image? In this workshop you’ll learn a whole range of techniques, from time shifting to creating rain and water effects, from building complex reflections to lighting up windows. You’ll also see how to use Photoshop filters like Motion Blur and Plastic Wrap to create a wide range of liquid and weather effects, how to add convincing shadows, and how to use dramatic lighting effects to bring a dull image to life.