When you first got into photography you probably weren't thinking much about your digital image workflow. Then you really caught the photography bug, and several years (or maybe weeks!) later you've taken thousands of images. If you're anything like me, these pictures are pretty disorganized. This tutorial shows how to use Adobe Lightroom to tame your photo collection and get the most from your pictures.
Catalogs & The Non-Destructive Difference
If you've used photography programs like Photoshop before, the biggest difference you'll notice with Lightroom is the Library. The first time that you open Lightroom, you'll be working in a catalog. Think of catalogs as Lightroom's organizational metaphor: like a ledger, as you import images to Lightroom they are added as entries in the catalog. When you then make changes to an image, the original image file is preserved as master copy.In Photoshop, we can save our progress using TIFF or PSD files - layered Photoshop documents that include the image and all of the changes to the image. This is called a "non-destructive" process because it preserves the original image. However, these files tend to be pretty large: often too large for sharing online or sending in an email. They are also meant for use only with Photoshop and a handful of other programs.
If we save finished images in a smaller, compressed image format, like JPEG or GIF, we've applied a destructive edit. The changes we've made are saved permanently and we can't revert back to the original image.
Catalogs and non-destructiveness are the two crucial features that define Lightroom as an all-purpose photo management and digital imaging system. With this system, we can manage an unlimited number of pictures and make an unlimited number of changes without any loss of quality.
Made of Modules
One of the key differences in the structure of Lightroom is that it is divided into a series of modules. The modules are unique workspaces that allow you to interact with your image collections in different ways. This set of modules makes Lightroom a nearly-complete photo editing and image processing suite.
The various modules are shown in the upper right part of the application. Click the name of the module make it the active module.
Library
The Library module is for getting your image collection organized and tagged. As your collection grows, you'll need to add information about your images to your images to keep them organized, and this is the place. Lightroom's Library provides all the tools you need to manage your pictures and stay sane.

Develop
The Develop module is where image-processing happens. With a full set of tools for correcting and adjusting images, you'll probably spend much of your time in the Develop module. Photoshop just might get jealous!
The bulk of my work occurs in the Library and Develop modules. The rest of the modules are worth checking out, but many other photographers I've spoken to note that their habits match mine, taking images from start to finish in these two modules.
Map
The Map module is designed to help you visualize where your images were captured. If your camera adds GPS data to your images, you can load your images in the Maps module and see them automatically placed on a true to life map. If your camera doesn't add the GPS data automatically, you can still drag and drop images on to the map to note their location.
Book
In Lightroom 4, Adobe added the ability to create and print photo books via Blurb, an on-demand printing service. This is a tool that Lightroom offers for creating a printed copy of the images in your catalog. The beauty of this system is that you can layout and print, all without leaving Lightroom.
Slideshow
Another great client-driven tool is the Slideshow module, used to put together slideshows of any image in your catalog.

Web
With the Web module, Lightroom can render HTML templates and images from your catalog into a page ready for publishing to the web.
These modules all add a new function and way to interact with our images. The key is that we never have to leave Lightroom, whether we are applying adjustments or sending images out to the web.
Wrapping Up
In this intro to Lightroom 5, we've taken a look at what makes Lightroom unique as well as all of the modules inside of it. This suite of modules is a completely immerse experience for photographers, capable of handling images from start to finish.Are you using Lightroom yet? What modules and features do you want to learn more about?