The focus of this title is on practical aspects of human coronary collateral vessels. However, basic science and pathophysiological aspects should also be covered in every chapter as without this knowledge, clinical aspects cannot be fully understood. Each chapter will be divided into a more practical part ('at a glance') and into a 'full picture' part. The number of pages would be between 400 and 500 and highly illustrated. The imaging chapters will be well illustrated with examples of angiogenesis and collateral vessels via all the relevant imaging modalities.