Depression in Later Life: A Multidisciplinary Psychiatric Approach opens with an engaging account of the epidemiologic challenges in defining and measuring depression in later life, complicated by comorbid illness, psychosocial losses, environmental influence, and cultural bias. Here the reader is introduced to themes running throughout the text outlining the tragedy of underrecognized and undertreated depression in our aging population. Successive chapters describe the complexity of diagnosing depression and nonmajor depressive syndromes among older adults. There is growing evidence that depressive syndromes in late life are distinct from those found among younger adults. Clear descriptions of emerging concepts such as subthreshold major depression, subsyndromal depression, and minor depressive disorder help the reader to unravel the limitations of our current nosology and fill in the mosaic of depressive syndromes that are especially relevant to older adults.