Complex sentence: He is best remembered for his colourful and highly subjective three-volume "Diaries of a Cabinet Minister", published posthumously from 1975 to 1977 and overing his time in government from 1964 to 1970.
Split into simpler sentences: He is best remembered for his colourful and highly subjective three-volume "Diaries of a Cabinet Minister", published posthumously from 1975 to 1977. Covering his time in government from 1964 to 1970.