Mobile learning - learning through small wireless devices such as smartphones - is establishing itself as a way to integrate self-directed learning processes into daily workflows, providing location-independent access to information, social networks, or learning and working tools, as well as the ability to access small learning units for situational retrieval. Companies and (higher) education institutions have discovered the potential of mobile learning. This collection fundamentally addresses the topic of mobile learning. Additionally, the authors from business and academia share their experiences and scientific insights regarding this new form of learning through practical examples.