Everyone who dies by suicide has thought about suicide prior to their action. Suicidal ideation is, therefore, one of the most important risk factors for suicide. This book explores and illustrates current research on this risk factor. There are reviews of selected aspects of suicidal ideation. Karolina Krysinska and David Lester review research on whether religiosity is a protective factor for suicidal ideation, while John Gunn reviews whether bullying is a risk factor. Cathy Pederson reviews research on suicidal ideation in the chronically ill. Three research studies are presented:...