Vote with a smiley face: electoral guide says X doesn't have to mark the spot | General election 2015 | The Guardian
What is a provisional ballot? Man shows up at the polls, is told he already voted in 2020 election - ABC11 Raleigh-Durham
File:Ballot paper for the 2016 ACT election.jpg - Wikimedia Commons
The life cycle of Wisconsin election ballots
Postal voting - Wikipedia
Declaration on Criteria for Free and Fair Elections | Inter-Parliamentary Union
Designing usable ballots | Center for civic design
Idaho politicos rally support and opposition for constitutional amendment - Idaho Reports
ACE
What is spoiling your ballot, and how do you do it? - Voting Counts
Everything you need to know about how to vote on election day - ABC News
Optional preferential voting | Electoral Commission of Queensland
Federal elections - Parliamentary Education Office
How bad ballot design can sway the result of an election | US elections 2020 | The Guardian
The Futility of Ballot Spoiling | None of the Above UK
ACE
German Bundestag - General, direct, free, equal and secret
Federal judge blocks another attempt to stop use of signature verification machine in Clark County, slow count of mail ballots – The Nevada Independent
Advice For Making Sure Your Mail-In Ballot Gets Counted In California - capradio.org
Dealing with doubtful ballot papers
Maine's ranked choice voting rules and procedures, explained | AP News