How to use Views to make a Block that displays a field from the author's profile?
I assumed that you have create a block view. (In case if you want to know how to create, check the revisions of this answer)

Add Author Relationship



Add Fitter Criteria : User: Current with author relationship


select Is the logged in User - yes. Click on Apply. 

It pulls a field from a node (the author of the current node) and display it in a block