The ELECTROSTATIC CONTROL OF MICRO- AND NANO-SCALE ELECTRONIC DEVICES by exploiting the field effect is ubiquitous in nanoscience and technology and traditionally follows the metal-oxide-semiconductor approach. A novel route implying a true paradigm change envisions the use of soft matter as the gate medium for applying impressively high static electric fields to semiconductors or other materials. This method exploits the way of iontronics to electrostatic gating, using the movement and spatial organization of ions to build up an electric double layer that is the ultimate responsible for the gating action. IONTRONICS targets the control of electrical properties and functionality of electronic devices by exploiting ionic motion and arrangement, and represents an interdisciplinary field encompassing electrochemistry, solid-state physics, energy storage, electronics, and biological sciences. A key element driving the functionality of iontronic devices is the electric double layer (EDL) formed at the interface between an (electronically insulating) ionic conductor and an electronic conductor, e.g. an inorganic semiconductor. In this context, the use of IONIC LIQUIDS (ILs, salts in the liquid state at 300 K) for the realization of EDL transistors (EDLTs) was shown to yield very high local electric fields and efficient carrier-density modulation, and was recently applied to nanomaterials including 2D SYSTEMS (graphene, layered TMDs) as well as QUASI-1D SYSTEMS (nanowires, nanotubes). IONTRONICS AIMS AT presenting the most recent results achieved by the interdisciplinary community working on electric double layer transistors.The ELECTROSTATIC CONTROL OF MICRO- AND NANO-SCALE ELECTRONIC DEVICES by exploiting the field effect is ubiquitous in nanoscience and technology and traditionally follows the metal-oxide-semiconductor approach. A novel route implying a true paradigm change envisions the use of soft matter as the gate medium for applying impressively high static electric fields to semiconductors or other materials. This method exploits the way of iontronics to electrostatic gating, using the movement and spatial organization of ions to build up an electric double layer that is the ultimate responsible for the gating action. IONTRONICS targets the control of electrical properties and functionality of electronic devices by exploiting ionic motion and arrangement, and represents an interdisciplinary field encompassing electrochemistry, solid-state physics, energy storage, electronics, and biological sciences. A key element driving the functionality of iontronic devices is the electric double layer (EDL) formed at the interface between an (electronically insulating) ionic conductor and an electronic conductor, e.g. an inorganic semiconductor. In this context, the use of IONIC LIQUIDS (ILs, salts in the liquid state at 300 K) for the realization of EDL transistors (EDLTs) was shown to yield very high local electric fields and efficient carrier-density modulation, and was recently applied to nanomaterials including 2D SYSTEMS (graphene, layered TMDs) as well as QUASI-1D SYSTEMS (nanowires, nanotubes). IONTRONICS AIMS AT presenting the most recent results achieved by the interdisciplinary community working on electric double layer transistors.