Why is it converting to long?

[birddseedd]

Im having problems with this code

MsgBox(txtInsertName.Text And txtInsertAge.Text)

This code will work and gives me the text in the text box

MsgBox(txtInsertName.Text)

But if I put "and txtInsertAge.text" then it gives an exception on whatever value is in txtInsertName stating;

Conversion from string "bob" to type 'Long' is not valid.