Baking cookies for the winter holidays warms us twice, once with the heat from the oven and secondly with the cheerful feelings from those tasting the sweet treats. We asked baker and librarian Megan Kocher, the curator of the Doris Kirschner Cookbook Collection in Magrath Library, for her favorite cookie cookbooks for the holidays. Each of her three favorites is grounded in Minnesota and can be found in the Kirschner Collection.