Linear, by Dryden Goodwin, is a year long exhibition developed in association with Art on the Underground, showing portraits of Jubilee line staff. Goodwin has illustrated a series of 60 portraits of staff at work, or at moments of pause in their day.

As well as his beautifully intricute illustrations you can see a film of every portrait being drawn, each of which is stunning in its own right. Check them out here

The portraits can be seen over the next year across the London Underground network at various exhibition sites including Southwark, London Bridge and Stanmore.

More images after the jump