Inner Planets: Origins, Interiors, Commonality and Differences -- Mercury and Venus: Significant Results from MESSENGER and Venus Express Missions -- Mercury - the Sunshine Planet -- Accessing the Venus Lower Atmosphere and Surface- from Venera and Pioneer Venus to VISE and VITaL -- Special Orbits for Mercury observation -- Low-thrust Earth-Venus Trajectories -- Estimation of the Fuel Consumption for Space Trip to Venus and Mercury -- Drilling and Sample Transfer Mechanisms for Potential Missions to Venus -- Pneumatic Drilling and Excavation in Support of Venus Science and Exploration -- Power System Options for Venus Exploration Missions: Past, Present and Future -- Production of Energy for Venus by Electron Wind Generator -- Photovoltaic power resources on Mercury and Venus -- Flight Apparatuses and Balloons in Venus Atmosphere -- Mercury, Venus and Titan -- Deployable Structures for Venus Surface and Atmospheric Missions -- A Systems Approach to the Exploration and Resource Utilization of Venus and Mercury -- Artificial Magnetic Field for Venus -- Business Modalities of the Inner Solar System: Planets with Potential? -- Economic Development of Mercury: A Comparison with Mars Colonization -- Terraforming Mercury -- Terraforming Mercury and Venus -- Cloud Ten.