<I>Signature Wound: Rocking TBI</i> completes a trilogy of <I>Doonesbury</i> books that examines the impact of combat on American soldiers in Iraq.<P>A twist of fate brings B. D. to the bedside of SFC Leo Deluca (a.k.a. Toggle), a young HUMV driver and headbanger whose love of ear-bleed battle music had sonically distracted him enough to get his vehicle blown up. Missing an eye and suffering from aphasia, Toggle fights to recover from traumatic brain injury (TBI), a journey of recovery that brings out the best in B. D., his former commander. Toggle's tattooed, metalhead mom initially has reservations about his improbable Facebook romance with an MIT tech-head named Alex, but love blooms. As this engaging story unfolds, Toggle finds himself drawn toward a career in the recording industry, undaunted by the limitations of the New Normal that now defines his life.<P>Crafted with the same kind of insight, humor, and respect that prompted the Pentagon and the VA to host signings of the two previous books in the trilogy, <I>Signature Wound</i> is a perceptive and timely look at the contemporary soldier's experience.