2. They prepared photographs and printed them onto zinc sheets.

3. In the composing room, compositors built each newspaper page within a metal frame.

4. Today, the editorial team creates each page on computer.

1. In the 1930s foundry workers took papier-mâché impressions of the flat metal newspaper pages.

2. Inside a casting machine, molten metal was added and a metal printing plate, called a stereotype, emerged.

3. Printers attached the plates to the cylinders of the giant presses.

4. Today, digital newspaper pages arrive directly at the print works from the editorial offices.

5. The plate-making machine turns each digital file straight into a metal printing plate.

6. Each plate carries a barcode to ensure it ends up at the right printing press.

1. Early in the century, printers produced newspapers on rotary letterpress machines.

2. As the cylinders turned, the printing plates transferred ink to the paper rushing past.

3. Today, lightweight aluminium printing plates allow the press cylinders to spin faster.

4. Robots deliver paper to the presses, and technicians can check colour quality and top up ink levels at the touch of a button.

1. Pre-printed supplements unwind from an enormous reel.

2. They travel through the inserting department to be slotted into the newspapers inside a rotating drum.

1. In the past, large teams stacked and tied the bundles of newspapers in a frenzy of activity.

2. Today, conveyor belts carry the paper bundles through the publishing halls to be automatically strapped and cling wrapped.