The book is a new comprehensive textbook about creating and publishing geoinformation metadata.It is a compendium of knowledge about geoinformation metadata in INSPIRE Directive and Spatial Information Infrastructures. It contains the knowledge necessary to understand prior to the creation of geoinformation metadata.Metadata – “data about data” - describe the layers of spatial data (data series, services) responding to the questions: what?, why?, when?, who?, how? and where?Geoinformation metadata allows for exact search of the spatial data according to given criteria, regardless of where this data is located.On 15 May 2007 the EU Directive 2007/2/EC came into force establishing Infrastructure for Spatial Information in Europe - INSPIRE. The proper functioning of the infrastructure for spatial information would not be possible without the metadata.