Abtheilung I: Werke

The edition of Kant's complete writings initiated by the Royal Prussian Academy in 1900 has remained the authoritative Kant edition up to this day. The critical edition is divided into 4 sections:

the works are edited in Section I, comprising 9 volumes, and the letters in Section 2 (Vols. 10-13, Supplementary Volume 23). Section III (Vols. 14-23) contains Kant's posthumous manuscripts. The edition of the lectures in Section IV is not yet complete; so far, Vols. 24-25 and 27-29 have been produced.

Each volume contains factual explanations and an apparatus on the variant readings. Access to the work is facilitated by a word index (Vol. 16) and an index of personal names (Vol. 20).