Visiting Yellowstone Park can feel intimidating—let alone trying to check it off your list in just one day. But don’t let your timeframe deter you from seeing all that the Park has to offer. Whether you’re there for a day or a month, be sure to check out the all-new 20th-anniversary edition of A Ranger’s Guide to Yellowstone Day Hikes (Farcountry Press, $22). Authors Carol Shively and Roger Anderson eloquently describe 34 day-hikes in great detail, from a ranger and naturalist perspective. Reading their descriptions make you feel as though you’re walking the trails with them. This book not only directs you to desired locations, but also explains the history and natural beauty of each trail’s surroundings; I recommend packing the guide with you on the trail to experience its full impact. This edition builds upon previous versions: five new hikes, vibrant and updated photographs at each location, and improved topo maps. You can take their word for it, too, Shively and Anderson hiked every trail themselves to ensure that they included the best spots.