The library holds the world’s largest collection of maps—over 5.2 million maps according to their website. This webinar will describe the collections most valuable for genealogical research. We are going to explore the online resources and how they can help our research. Exploring the phenomenal learning resources is also on the agenda. We will also talk about finding aids, research guides, reproduction capabilities, and alternative ways to access the map collections. Lastly, we will discuss the resources that are only available onsite, such as the cartographic library, cartographic exhibits, and other unique holdings.