This section will be personal and unique for every user since it shows the documents that are awaiting your attention. From here you can have a quick overview of all the documents that have their workflow pointing to you.
You might have to review or approve some of these documents; you will have access the document and see in which state is.
Type of Document
Here you can select which document type you want to check. Also, you can see how many documents of each type you have in your inbox.
Finally, you can find more details such as the creator of the document, the step of the workflow where it is at the moment and the element selected from the WBS (work breakdown structure).