In the deeply personal Decade of the Brain, Janine Joseph writes of a newly-naturalized American citizen who suffers from post-concussive memory loss after a major auto accident. The collection is an odyssey of what it means to recover—physically and mentally—in the aftermath of trauma and traumatic brain injury, charting when “before” crosses into “after.” Through connected poems, buckling and expansive syntax, ekphrasis, and conjoined poetic forms, Decade of the Brain remembers and misremembers hospital visits, violence and bodily injury, intimate memories, immigration status, family members, and the self. *After the accident I turned out all of the lights in the room while I watched,* *concussed, from the mirror. I edged like a fever with nothing on the tip of my tongue.*