EUROSENSORS 2017, the XXXI edition of the conference series, was held in PARIS at UIC-P Congress Center close to the Tour Eiffel, from September 3 to 6, 2017 for the third time in France, after Toulouse 1994 and Lyon 2007. Since 1987 the EUROSENSORS Conference is a unique forum for scientists and engineers from academia, research institutes and industry to present their latest results in the field of Sensors, Actuators, Microsystems and Nanosystems. EUROSENSORS 2017 was attended by 500 participants, 85% of them came from academia and 15% from industry and research facilities. 472 submissions were received from 39 countries for peer review, all being assigned to 4 reviewers. From the accepted ones, 146 lectures (including 4 plenary talks) were selected and presented in 12 topics, with focus on “Printed and flexible electronics” and “Sensors for Factory of the future”. 247 posters were presented and displayed during the entire duration of the conference.On Sunday 3 September, EUROSENSORS SCHOOL focused on “Printed and flexible electronics” was attended by 45 persons.