I made this poster on Adobe illustrator where I used the print sizes in the background from size A0 down to A8. I used typography in my title using different fonts, kerning, descenders, tracking, sans serifs, cap height, x-height and type styles (light, regular, bold, italic, condensed and expanded).
I then added the stationary from the UK and US such as business car , compliment slip and letter head sizes. I then added the sizes from A8 up to A0 in MM.