Blue pocket Portland guide with star sticker

Lost my blue pocket Portland guide yesterday around 3pm near Powell's Books on Hawthorne. It's a small 4x6 inch paperback edition of the Portland Pocket Guide by Lonely Planet, with a bright yellow star sticker on the cover and an orange ribbon bookmark peeking out. Inside there are a few handwritten notes about coffee spots and bus routes—things I jotted down while wandering around downtown Portland. If anyone found it, I'd really appreciate getting it back; it has sentimental value and means a lot to me.