This collection investigates the evolution of Margaret Thatcher's political ideology and rhetoric throughout her career by compiling her complete public record. Christopher Collins and the Margaret Thatcher Foundation provide this comprehensive archive to serve as a primary source for historians and political analysts. The text organizes thousands of documents chronologically, allowing for a granular examination of how Thatcher's policy positions shifted from her early parliamentary days through her tenure as Prime Minister.

Historians and political researchers regard this collection as the definitive primary source for studying Thatcherite policy and rhetoric. Readers frequently note the immense density of the material, which requires significant time to navigate but offers unparalleled access to the historical record.