A number of fact sheets, flyers and presentations on Copernicus and the Sentinels are available for download by clicking on links highlighted in blue text below.
Sentinels - Space for Copernicus
ESA Brochure (BR-319) 2nd edition, 2015
Sentinel fact sheets
Copernicus standard presentation
A 51-page PDF file providing an overview of Copernicus, including a description of the programme's goals, infrastructure, status, Space and Services Components.