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By the Author
![Weeds of the Pacific Northwest](https://www.whoisbarrysonnenfeld.com/wp-content/uploads/2023/10/9781643261089.jpg?w=190)
Weeds of the Pacific Northwest
![Trees and Shrubs of the Pacific Northwest](https://www.whoisbarrysonnenfeld.com/wp-content/uploads/2022/10/9781604692631.jpg?w=190)
Trees and Shrubs of the Pacific Northwest
![Wildflowers of the Pacific Northwest](https://www.whoisbarrysonnenfeld.com/wp-content/uploads/2023/10/9780881927450.jpg?w=190)
Wildflowers of the Pacific Northwest
![The Way We Think](https://www.whoisbarrysonnenfeld.com/wp-content/uploads/2017/06/9780465087860.jpg?w=187)
The Way We Think