Many countries have legislation on national security, including economic security, energy security, social security, and political security, which are commonly regarded as "national security law" (NSL). With particular reference to Hong Kong, the Hong Kong National Security Law is something new to the Special Administrative Region of China. To help young people understand the Hong Kong National Security Law, it is explicitly stated in the Hong Kong National Security Law that education institutions, including universities, have the responsibility to implement education programs on the Hong Kong National Security Law. At the Hong Kong Polytechnic University, we have developed four NSL programs. First, we have designed a face-to-face program on law abidance leadership for 4-year undergraduate students. Second, we have designed an online program on law abidance leadership. Third and last, for postgraduate students, an online course plus self-study is required, and the same for research postgraduate students. In the past two years, we have already demonstrated the impact of the program for the 4-year students via objective outcome evaluation, subjective outcome evaluation, and qualitative evaluation. Besides the 4-year undergraduate program, there is a need to understand the impact of NSL education programs for the Senior-Year program, taught postgraduate programs, and research postgraduate programs. In this book, we collected several papers adopting different evaluation strategies to examine the impacts of NSL education programs in Hong Kong.