The diaries cover the period of Agatha's teenage years, with occasional gaps. Volumes 2-7 are paginated; volume 8 is partially paginated. Volumes 1 and 3 include explanatory lists of people mentioned. Volumes 3, 8 and 10 include lists of books read. Most volumes include photographs and postcards pasted in at the back, including many photographs of Perse High School for Girls sports team photographs, usually with keys to names. The earlier volumes are very much a child's writings, maturing somewhat from volume 5 onwards. The diaries are largely factual, often giving lengthy descriptions of individual events (volume 5, p. 131 - 'Some people put all their feelings - - in their diaries but I can't'). From volume 8 onwards, Agatha appears to become much less keen on diary writing, or at least the entries become less frequent. Volume 10 is mostly very reflective in nature. Most volumes make regular reference to Agatha's Uncle Eustace Tillyard [Dadi] and his wife Phyllis [Mudie-Cooke] and their children Stephen, Veronica and Angela; also her Uncle Julius [Dudu] and his wife Mina and their adopted children Walter and Constance. References to life at the Perse High School for Girls, including competitive sport, are frequent in volumes 1-3, 5-8 and 10, and Perse sports team lists and photographs are included in volumes 1-3, 6 and 8. There are references to Girton College in volume 8 (when her sister Alethea went up to Girton) and volume 10, though the diaries cease some time before Agatha herself went to Girton. Agatha's friend Joan Wood is mentioned frequently in volumes 2-3 and 5-6. Juan Mascaro, an acquaintance of Agatha's mother Aelfrida, is mentioned in volume 8. There is mention of Agatha's father, Constantine Graham, in volume 3. Volumes 3 onwards refer frequently to Cambridge University events and acquaintances amongst male students, some direct and some through her mother's teaching of undergraduate students.