Understanding how catalogs work and learning how to effectively create and manage them are two of the biggest challenges that new Lightroom users face. Setting up a catalog properly at the outset of using Lightroom can prevent big headaches down the road—and prevent you from being an otherwise experienced user who suddenly encounters catalog confusion.
Luckily, a great deal of learning content is available on how to create and manage Lightroom catalogs. For the basics, see the Lightroom Community Help page Creating and managing catalogs. But better yet, see our support doc Catalog FAQ | Lightroom. I just expanded it to cover even more frequently asked questions, such as how to move a catalog from a PC to a Mac and how to bring a Lightroom 2 catalog into Lightroom 3. I also added links to some great community tutorials on the various topics.
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