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.
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
Think tank - A research organisation focusing on a certain topic, such as climate policy or education. They often produce information used by businesses, governments and big organisations.
Electorate - All the people eligible for voting in a country.
Conservative - Holding traditional values, and in a political context, favouring policies such as private ownership.
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.
Apathy - Lack of interest or enthusiasm.