In Wikipedia and the Politics of Openness, Nathaniel Tkacz unpacks why and how Wikipedia enjoys this particular exemplar status. It is this kind of talk that tells a great deal about what Wikipedia is, even as it might obscure the way it actually works. The very title bespeaks one of Tkacz’s most important claims: that Wikipedia does not exist alone, that it is circumscribed by and spoken about (Wikipedia and … ) in a political logic of openness. In a thorough examination of the system of statements attendant to this concept of openness, Tkacz places Wikipedia in a long lineage of political–philosophical thought. The text’s capacity to locate Wikipedia’s specificity while sketching the whorl of concepts that orbit around it is a formidable achievement.