IMPORTANT NOTE: The first edition of this book (ISBN 9781607013914), at least, is missing the second half of “Seasons of the Ansarac” by Ursula Le Guin. You can read the missing part of this story here.
Aliens — realistically developed, biologically plausible, sentient species — are my absolute favourite element of science fiction. My dream anthology would be a hard-SF-only collection of stories about aliens: their biology, culture, and interactions with humans. Aliens: Recent Encounters (2013), edited by Alex Dally MacFarlane, mixes both hard and soft SF with a smattering of magical realism and mythology, so not every story was to my taste. However, it is still an excellent anthology, thematically strong, while providing lots of variety.
This is a reprint anthology containing 32 short stories, all originally published between 2000 and 2012 (hence the book’s subtitle). The editor has done a good job of representing a number of nationalities with her author choices, and the gender balance is good too, with 21 stories by women, 10 by men, and one “neutrois” (neutral-gendered) author. There are a few really big names (i.e.: all the ones on the front cover) but a whole bunch of relative unknowns as well.