Dim sites() As String = {"Stack Overflow",
"Super User",
"Ask Ubuntu",
"Hardware Recommendations"}
Dim query = From x In sites Select x.Length
' result = 14, 10, 10, 24
Query result will be enumerable object containing lengths of strings in input array. In this example this would be values 14, 10, 10, 24. x in the query is iterating variable where will be stored each object from the input array.