This user guide introduces the basic concepts of Get Localization; for example continuous localization/translation, collaborative translation and others. It also helps you in getting started with the user interface and features. Use the navigation bar to navigate between topics and documents.
If you have more specific questions, you can head to the knowledge base that contains more "How to do this and that" type of information.
You can also search from this documentation and from knowledge base by using the search above. If you can't find an answer to your question, feel free to open a ticket.