What if you could consult with genealogical experts each time your work slows? Together you could explore options for new paths of discovery. The right approach to a literature review allows you to do that. Other experts have encountered the same challenges that you do, and they have written about them even if not overtly. These challenges could range from beginning work in a new geography to parrying with a difficult brick wall. Learn how to conduct a targeted literature review, cull the information you need, and advance your research. A case study on use of negative evidence will highlight the methodology.