This work investigates the operational relationship between the British Cabinet and the House of Commons to clarify the mechanics of parliamentary democracy. Herbert Morrison, a senior British politician who served as Deputy Prime Minister, draws upon his extensive experience in government to explain how policy is formulated and enacted. He provides an insider's view of the legislative process, focusing on the practical application of constitutional conventions and the day-to-day responsibilities of ministers.

Experts recognize this text as a foundational primary source for understanding the mid-20th-century British political system. Readers frequently note the pragmatic, non-theoretical nature of the prose, which reflects the author's direct experience in government.