I use Lightroom every day, I must say that in most areas it is a joy. Understanding how the software works can be a bit confusing though as bits sometimes will not do what you expect. As such I am in the process of writing a course on the use of Lightroom and hope to have it ready for next term. In the meantime this excellent explanation by Chase Guttman over on Lightroom will help to explain one of the main features, the use of modules.
“Adobe Photoshop Lightroom is an essential component of any digital photographer’s toolbox. As with all post-processing software, Lightroom is a program that photographer’s can use to improve and organize their visual art. Yet, Lightroom is unique in many ways. Unlike other popular post-processing software, Lightroom is a modular program and has the advantage of non-destructive digital editing (in other words, the original files are never altered within the program). The program is designed in such a way, so that each module found in Lightroom, can be used to accomplish different tasks in an efficient manner.
Another unique feature of Lightroom is that the software is designed to handle many images at once, so it’s equipped to deal with the fast paced workflow of many digital photographers. This is due to the fact that with Lightroom, your images are separated into different catalogs, where Lightroom handles only a specific set of images at one time.
Finally, with less of a learning curve than Photoshop, Lightroom is the best choice for amateur photographers who are just starting with post-processing.”.…MORE