Do they really matter? As Britain heads to the polls, political parties are preparing manifestos. They are a key part of the electoral process — but some think they are broken.
Get involved: Write your own manifesto
Promises: Previous manifestos from the major UK parties — but none of the pledges are legally binding. Glossary
Philadelphia - The largest city in Pennsylvania, USA, with a population of one and a half million.
Declaration of Independence - The Declaration of Independence of 4 July, 1776 was an official act taken by all 13 American colonies in declaring independence from British rule.
Manifestos - A statement published by a person or group of people, especially a political party, or a government, in which they say what their aims and policies are
Blueprint - Design plans or drawing.
General election - In the UK, when an election is held for all 650 members of the House of Commons. One must take place every five years.
Conservative party - A British political party. Members are known as Tories.
European Union - A political and economic union of 27 countries.
Liberal Democrats - Also known as the Lib Dems, a liberal political party in the UK.
House of Commons - The democratically elected house of the UK Parliament. It consists of 650 Members of Parliament.
Boris Johnson - The Conservative Prime Minister of the UK and head of the government from 2019 to 2022.