The Golgi apparatus is a key component of plant and animal cells. Its primary role is to orchestrate the targeting of proteins and lipids to specific cellular destinations. With advances in our understanding of how the Golgi apparatus operates in plants, it will become possible to manipulate both the timing and the site of delivery of macromolecules, thus influencing plant growth and development. This volume concentrates on the major developments of the last few years, drawing attention to the distinct differences between the plant and non-plant Golgi apparatus and highlighting unsolved problems. A chapter is included on the yeast Golgi apparatus.