This research examines the level of information literacy skills in high school teachers and the extent of information literacy instruction in the western province of Thessaloniki. A census survey was conducted, which resulted in 500 structured questionnaires that were processed and analysed statistically using multivariate methods. The findings indicated that most of the teachers did not use any electronic sources, especially e-sources, and they were probably poor at helping children attain a level of information literacy. It was also found that men, teachers with a Masters or a PhD and teachers with less working experience were more likely to be frequent users of sources and especially e-sources. Therefore, it is suggested that teachers should attend information literacy training seminars. (Contains 4 tables.)