The recent rise of antisemitism in the United States has been well documented and linked to groups and ideologies associated with the far right. In _From Occupation to Occupy_, Sina Arnold argues that antisemitism can also be found as an "invisible prejudice" on the left. Based on participation in left-wing events and demonstrations, interviews with activists, and analysis of left-wing social movement literature, Arnold argues that a pattern for enabling antisemitism exists. Although open antisemitism on the left is very rare, there are recurring instances of "antisemitic trivialization," in which antisemitism is not perceived as a relevant issue in its own right, leading to a lack of empathy for Jewish concerns and grievances. Arnold's research also reveals a pervasive defensiveness against accusations of antisemitism in left-wing politics, with activists fiercely dismissing the possibility of prejudice against Jews within their movements and invariably shifting discussions to critiques of Israel or other forms of racism. _From Occupation to Occupy_ offers potential remedies for this situation and suggests that a progressive political movement that takes antisemitism seriously can be a powerful force for change in the United States.