Editorial, G. Tinetti, P. Drossart.- The EChO science case, G. Tinetti et al.- The phase 0/A study of the ESA M3 mission candidate EChO, L. Puig et al..- The EChO payload instrument - an overview, P.Eccleston et al..- On the (anticipated) diversity of terrestrial planet atmospheres, Jeremy Leconte, Ph.D..- Chemical modeling of exoplanet atmospheres, Olivia Venot, Ph.D..- Unveiling the atmospheres of giant exoplanets with an EChO-class mission., Vivien Parmentier.- The role of planetary formation and evolution in shaping the composition of exoplanetary atmospheres, Diego Turrini, PhD.- Transit spectroscopy of exoplanets from space: how to optimize the wavelength coverage and spectral resolving power, Encrenaz T. et al..- Exoplanet atmospheres with EChO: spectral retrievals using EChOSim, Joanna K. Barstow, DPhil.- The Status of Spectroscopic Data for the Exoplanet Characterisation Missions, Jonathan Tennyson.- The contribution of the major planet search surveys to EChO target selection, Giuseppina Micela, Ph.D..- The Gaia Survey Contribution to EChO Target Selection and Characterization, Alessandro Sozzetti, Ph.D..- EChOSim: The Exoplanet Characterisation Observatory software simulator, Enzo Pascale.- Generation of an optimal target list for the Exoplanet Characterisation Observatory (EChO), Ryan John Varley.- Data analysis Pipeline for EChO end-to-end simulations, Ingo Peter Waldmann, PhD.- Scheduling the EChO survey with known exoplanets, Juan Carlos Morales, Ph.D..- Artificial Intelligence for the EChO Mission Planning Tool, Alvaro Garcia-Piquer, Ph.D.- Correcting EChO data for stellar activity by direct scaling of activity signals, Enrique Herrero.- EChO spectra and stellar activity II. The case of dM stars., Gaetano Scandariato, Ph.D..- EChO spectra and stellar activity - I. Correcting the infrared signal using simultaneous optical spectroscopy, Giuseppina Micela, Ph.D..- Brown dwarf characterization with EChO, Morales et al..- The Visible and Near Infrared module of EChO, Giancarlo Bellucci.- Thermal control system of the Exoplanet Characterisation Observatory Payload: design and predictions, Morgante et al.- The Long wave (11 -16 m) spectrograph for the EChO M3 Mission Candidate study., Neil Edward Bowles, Ph.D.- EChO Payload electronics architecture and SW design, , Mauro Focardi, Ph.D..
