This document provides an overview of the European Spatial Data Infrastructure INSPIRE and discusses related activities. It describes the key components and implementing rules of INSPIRE, outlines the implementation roadmap, and reviews the scope of spatial data themes covered under INSPIRE annexes. It also discusses the INSPIRE Maintenance and Implementation Framework, two Joint Research Centre led actions under the Interoperability Solutions for European Public Administrations program (ARE3NA and EULF), and indicates potential areas of interaction between INGeoCloudS and INSPIRE/ISA initiatives.