The NSLE (National School of Leadership in Education) was established in 1995 by the Government of the Republic of Slovenia for training and professional development of head teachers and candidates. In accordance with the Act of the foundation of NSLE, its activities include professional development, training and other educational programmes, publishing books, journals and proceedings as well as promoting research and experimental development in education. The NSLE is a public service, the implementation of which is in the public interest. In the past few years nearly half of the programmes are co-funded by the European Social Fund (ESF).
In the 20 years of its activities, the NSLE has developed a system of lifelong learning professional development of Slovenian head teachers: