With the cover illustration the Editors would like to call your attention to two Feature Articles published in this issue. Both articles are among the most accessed Early View papers in Wiley InterScience®. Becquart and Domain present a versatile technique called kinetic Monte Carlo which can be used to simulate the evolution of a complex microstructure at the atomic scale. Starting on page 9, they describe the algorithm and how the key ingredients can be obtained to simulate phase transformations in metallic alloys and in particular iron based alloys under irradiation conditions. J. Christian Schön, Klaus Doll, and Martin Jansen, authors of the second Feature Article, introduce the basic concepts of energy and enthalpy landscapes and the methods employed for their global exploration on the ab initio level. Also, an overview over the current state of structure prediction of solid compounds and clusters on the ab initio level is given, with the focus on the prediction of extended crystalline solids (page 23).