I am currently looking into:

Holzkamp Lernen 1995
Lave/Wenger 1991 Legitimate Peripheral Participation, community
Engestroem, 1987, Learning by Expanding,
Bandura, Self efficacy
Vygotsky, Activity Theory
Dewey, Pragmatismus, Demokratie


Vygotsky, Activity Theory - don't really know ho to get a good introduction on how activity theory could be used as an analysis tool for analysing learning processes.
I am happy for any comments!