Chris (University of Oxford, UK) Gardiner & Paul (University of Birmingham Medical School, UK) Harrison 
Extracellular Vesicles in Health and Disease [PDF ebook] 

Interest in the role of extracellular vesicles (microvesicles and exosomes) is expanding rapidly. It is now apparent that far from being merely cellular debris, these vesicles play a key role in cell-to-cell communication and signaling. Moreover, they are significantly elevated in a number of diseases. This raises the question of their direct role