I have been using the Audubon Wildflower Guide (Eastern Region) from the library to identify most of these. I am still trying to decide whether or not to get this or the Peterson guide as my own. Against popular opinion and as a newbie, I am partial to the color photos in the Audubon guide, and like the size and 2-part organization. In the past, I’ve found it difficult to use illustrated wildflower guides since I need more detail to accurately identify as a beginner. Either way, it has been a joy finding all of these blooms.