This volume contains contributions from the conference on 'Algebras, Representations and Applications' (Maresias, Brazil, August 26 - September 1, 2007), in honor of Ivan Shestakov's 60th birthday. This book will be of interest to graduate students and researchers working in the theory of Lie and Jordan algebras and superalgebras and their representations, Hopf algebras, Poisson algebras, Quantum Groups, Group Rings and other topics.