Developments in geoimaging and geoinformatics are as dynamic as in any field of information technology. It has been estimated that 50% of one's IT skills are obsolete after 3-5 years. For this reason, a GIS professional can expect to update his or her knowledge on a regular basis. There are many resources such as textbooks, tutorials, journals, magazines, podcasts, blogs, etc. and these materials have selected material to support your studies and continuing professional development.