The aim of the project "Youth Information Knowledge Multipliers - Trainers' Seminar" was to enable sharing of knowledge and development of youth information (YI) training in Europe, as well as YI trainers' capacities through the seminar's programme. The project's main activity was organised in Zagreb, Croatia, between 3-7 May 2016 and it contributed to the operation of high quality youth information and counselling services in Europe, based on development of real and existing training capacities in the YI field. A total of 24 participants and experts came to Croatia from 7 other countries, Belgium, Estonia, Finland, Lithuania, Luxembourg, Slovenia and the United Kingdom to participate actively for four days in the seminar programme aimed to support discussions, exchange and relevant inputs, as well as joint conclusion making about existing European youth information training support, the creation of effective youth information trainers network, quality building in youth information training programmes and technological developments towards webinars and e-learning trainings. The project aimed at new developments of the training in Youth Information field in Europe by: - exchange of methods and knowledge between trainers; - supporting educational, social and cultural exchange of trainers due to diversities within youth information work in Europe; - discussing strategies and methods of updating the content of training programmes; - exploring the possibilities of increasing training outreach through webinars and e-learning methodologies; and - developing an effective and sustainable trainers network by using existing possibilities, such as on-line platforms and discussing about possibilities for new forms and places for meetings and networking. During the seminar programme, participants also shared responsibilities and tasks to work further with the above mentioned training issues in the future and make plans how to continue with development of youth information trainers network and capacity building in youth information training at the European level. Besides, participants had the possibility to participate in team-building activities that improved existing communication and cooperation between them. The added value to this seminar programme was that it enabled relatively new countries, such as Croatia or Lithuania that started to develop and improve its Youth Information Work system in the recent years, to accept knowledge and training experiences of colleagues from other partner countries and influence on improvement of capacity building programmes and trainings needed in the youth information field.