But perhaps the best moment of my day was when I spotted this shelf at The Book Exchange on the Kloveniersburgwal:
These hard to reach green Penguins cost between 2 and 2.5 euros, were mostly ones I didn't own, and Pam didn't want any of them. The shelves in the back room had vintage Penguins peppered through the other books, all well priced. It is a lovely shop with a delightfully friendly and helpful sales person named Frederico.
And this was the total haul:
Link to Pam's blog describing the day