(I won this in a giveaway and am providing an honest review as a thank you [although I would anyway!])
While the theme is fish, the ideas behind these stories are incredibly varied, all with completely different styles, even a couple paranormal cosies. Most of them were super fun with fascinating characters, although not all were to my taste. I found the first to be the weakest overall, but they just got better from there. A cool introduction to many different cosy writers!