Page 23 - Photoshop for Lightroom Users – Scott Kelby 2nd Edition

Step Six:
Okay, drag that Type layer back where it was, then move your small image back where it belongs (and make sure its layer is active in the Layers panel by
clicking on it once). Now we’re going to add a drop shadow effect to our small-image layer. Effects like this are called “layer styles” and they apply the
effect to whatever is on the layer (so, if you painted a red brush stroke on this layer, it would also have its own drop shadow). Click on the Add a Layer
Style icon (the fx) at the bottom of the Layers panel and choose Drop Shadow from the pop-up menu of effects.