In what way?
Churchill's History of the English-Speaking Peoples was commissioned and largely written in the 1930s when Churchill badly needed money, but it was put aside when war broke out in 1939, being finally issued after he left office for the last time in 1955. Although it contains much fine writing, it is very old-fashioned, seeing world history as a one-dimensional pageant of battles and speeches, kings and statesmen, in which the English occupy central stage. Events of central importance to modern history, such as the industrial revolution, are scarcely mentioned. Although Churchill's enormous prestige ensured that the books were respectfully received and sold well, they are now little read.