The diaries have been arranged in three chronological series: the unpublished diaries (/1-9); the backbench diaries (/10-59); and the ministerial diaries (/60-202). The audio tapes of the first revision were deposited later (/205-13). The various versions of the published diaries have been kept together, the earliest version first, the final proofs last.
Ministerial engagement diaries, some documents and correspondence used in editing the diaries have been placed at the end of the series (/203-4). Correspondence about the diaries has been placed with Crossman's literary correspondence files (MSS.154/3/LIT/31-4).