A lot of tools are available in Photoshop to add effects to photos, and one set of features that stands out is the blend modes. They include everything from very basic to really complex modes that can completely change the look and feel of your image. Here are some excellent tutorials and articles to master the blend modes:
1. An Explanation of Blend Modes:
If you are just getting started with blend modes in Photoshop, this is the best article around to get an overview. It covers all kinds of modes and describes them with examples. A very good basic understanding can be obtained with this article.

Another great resource that mentions all the blend modes along with an example of each.
This article nice categorizes the blend modes such as Darken Modes, Lighten Modes and Contrast Modes and describes them each.
4. Photo Effects with Dissolve Blend Mode:
Learn how to play around with the dissolve blend mode to add cool effects to your photos and change their tone.

See how color burn and multiple modes can help you in photo manipulation.
One of the best blending modes to create light effects.

7. Roughing Edges With Dissolve:
Another great walk through of using the dissolve mode to manipulate the edges of any object.

Love to use the blend modes? Learn these keyboard shortcuts for smarter and faster editing.
9. Learning The Basics | Screen Mode:
Another great article describing the basics of different blend modes. Also explains the screen mode in detail.

Learn the ins and outs of the Multiply mode to add effects to photos.

Another very useful tutorial about a great mode.
One of the contrast blending modes, overlay lets you darken or lighten your images.

Another excellent guide on applying the layer modes.

See some quick tips for using blending modes in this short video tutorial.
15. Darken Images With Multiply:
See a real world example of using the multiple blend mode in Photoshop.
All you needed to know about the pin light blending mode.
















