Libraries are a big source of information about various topics, including the ones related to health and its improvement. As such, they can have the ability to give young people ensured access to information sources about mental health that have been written by experts, and it is their cognitive authority that presumably gives young people the reassurance that the information they’re reading is trustworthy. In this research paper, it will be talked about the influence that libraries have as a source of information and about how they can use that influence to promote the mental health of young people. The focus of the paper will be on young people in higher education because they are more exposed to psychological and emotional challenges. The first part of the paper will focus on information sources available on the Internet about mental health and about the information sources available in libraries, including their perks and flaws regarding their availability and accuracy of information about mental health. In the second part, possible ways of promoting good mental health with the use of mental health literacy in libraries will be presented, along with the results of a research based on the opinions of young people on those methods of promotion.