The final volume (XXVI) of Princeton's Kierkegaard's Writings series, the Cumulative Index provides wide-ranging navigation to the preceding twenty-five volumes in the series. Composed of over 90,000 entries, the Cumulative Index offers access to Kierkegaard's complex authorship and the extraordinary range of subjects he addressed in his writing. Covering the series' historical introductions, primary works, supplementary material (journal entries), and footnotes, the Cumulative Index provides a comprehensive entryway to the series' more than 11,000 pages of text. Readers are able to survey via extended entries Kierkegaard's dual authorship(pseudonymous and signed), his frequent biblical references and allusions, his references to Christianity, God, and love, and his frequent use of analogies.

A cumulative collation of the extensive supplementary material (over 4,000 journal entries) is also included, giving researchers and avid readers the opportunity to correlate and examine items from the current series, Søren Kierkegaard's Journals and Papers, and the original Danish Søren Kierkegaards Papirer.