This volume represents one of the two edited by inviting a selection of young researchers participating to the European Young Chemist Award 2010. The other volume concerns the area of Nanotechnology/Material Science and is titled: Molecules at Work. This book contains the contributions of selected young chemists from the field of synthetic chemistry. The contributions are grouped under the three following umbrella topics: Synthetic Methods Catalysis Combinatorial and Chemical Biology This volume is an indispensable read for all organic and inorganic chemists, biochemists, chemists working with/on organometallics, and Ph.D. students in chemistry interested in seeing what tomorrow's chemistry will look like.