Why engagement matters :  cross-disciplinary perspectives and innovations on user engagement with digital media / 
spine title :  Why engagement matters. 
editors Heather O'Brien, Paul Cairns. 
 - xxiii, 222 pages :  illustrations ;  24 cm. 
<br/><br/><label>ISBN: </label>9783319274447  RM422.48 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human-computer interaction.<br/>Digital media--Social aspects.