00385nam a2200133 a 4500008004100000020001800041050001900059100001400078245006100092260004900153300001600202350001000218650002300228160609s2014    ||||||||||||||||| ||    u  a9780615978628  aHF 5415.15 Eya  aEyal, Nir10aHooked: how to build habit-forming productscBy Nir Eyal  aMilton KeynesbLightning Source uk Ltdc2014  a184p,: ill.  a38.00  aPRODUCT MANAGEMENT