Classic example of self join in SQL Server

How can we find employees and their respective manager, if all employee details available in same table.

DECLARE @EMP TABLE 
(
  EMPID INT,
  EMPName NVARCHAR(100),
  ManagerID INT           
)

INSERT INTO @EMP
SELECT 1,'Mark',Null UNION ALL
SELECT 2,'Peter',1 UNION ALL
SELECT 3,'Sam',2 UNION ALL
SELECT 4,'Fedrik',2

SELECT E1.EMPName AS 'Employee Name',E2.EMPName AS 'Manager Name' FROM @EMP E1 ,@EMP E2
WHERE
E1.ManagerID = E2.EMPID