This poster presentation summarizes a research project conducted by an academic library team to assess the impact of information literacy (IL) instruction on student critical thinking skills. The team used pre- and post-tests as well as a rubric to analyze student work. They found that IL instruction led to significant gains in students' abilities to develop topics, evaluate sources and information, with over 85% of students improving on these skills. The presentation concludes that embedding IL instruction across disciplines could further benefit student learning and success.