Are both sentences below saying the same thing? If not, what's the difference in meaning?<br/><br/>Last month, my boss <b>gave</b> me a raise.<br/><br/>Last month, my boss <b>had given</b> me a raise.<br/><br/><span style="color:rgb(0,0,0);"><font color="red">I have read the book that you had given me.</font><br/><font color="red">I have read the book that you gave me.</font></span><br/><span style="color:rgb(0,0,0);"><font color="red">Are both correct grammatically as well?</font></span><br/><br/>Is there really a difference? Which is correct? Can anybody succinctly explain the difference so that I 'get it'?<br/><br/>Thanks.