Willems, Mo <br/><br/>
My friend is sad 

 - New York 
 - 64 p.  5 x 0.45 x 9.3 inches 
 - 2008 
 - Elephant and Piggie Book .
<br/><br/> Gerald is careful. Piggie is not.<br/>Piggie cannot help smiling. Gerald can.<br/>Gerald worries so that Piggie does not have to.<br/>Gerald and Piggie are best friends.  
<br/><br/><label>ISBN: </label>9780545071475 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Helping Others<br/>Friendship<br/>Kindergarten's Literature<br/>Feelings and Emotions