Welcome to the International Conference on Organic and Hybrid Thermoelectrics, which will be held in Valencia, from Jan 29th to the Feb 1st, 2017. The use of fossil resources, mainly oil and carbon, for the production of energy, is one of the main sources of CO2 generation. One of the bets to favor a cleaner and sustainable environment is the development of thermoelectric devices. If we pay attention to the expansion of the efficiency in the field or organic or hybrid thermoelectrics, its increase has been at least three orders of magnitude in ten years. The exchange of information between scientists working in the field of organic thermoelectrics is essential to have in a few years thermoelectric devices competitive in price when compared to other clean energy resources.