A pedestrian truck comprising: a rear steerable wheel disposed at a rear end of the truck generally along a front-rear centre line of the truck; a tiller providing an operator input to steer said rear wheel by rotation of the tiller about a tiller axis; a steering controller for steering said rear wheel in response to said tiller rotation; a controllable front wheel disposed at a front end of the truck and offset to one side of the centre line; a castor front wheel disposed at said front end of the truck and offset to the other side of the centre line; an alignment mechanism for aligning the controllable front wheel either generally parallel with a front-rear centre line of the truck when the truck operates in a first mode of operation, or generally perpendicular to said front-rear centre line of the truck when the truck operates in a second mode of operation; and a drive mechanism for driving at least one wheel of the truck in a forwards or reverse direction in response to an operator control; characterised in that said steering controller is operable in a normal steering mode to steer the rear steerable wheel in the same sense (clockwise or anticlockwise) as the tiller is rotated and in an alternate steering mode to steer the rear steerable wheel in the opposite sense to the rotation of the tiller; and the truck further comprising a steering mode selector for automatically engaging the alternate steering mode of the steering controller when the truck is in the second mode of operation and either (i) the tiller is positioned on the same side of the centre line as the controllable front wheel and the drive direction is such that the tiller leads the truck, or (ii) the tiller is positioned on the same side of the centre line as the castor front wheel and the drive direction is such that the tiller trails the truck. a rear steerable wheel disposed at a rear end of the truck generally along a front-rear centre line of the truck; a tiller providing an operator input to steer said rear wheel by rotation of the tiller about a tiller axis; a steering controller for steering said rear wheel in response to said tiller rotation; a controllable front wheel disposed at a front end of the truck and offset to one side of the centre line; a castor front wheel disposed at said front end of the truck and offset to the other side of the centre line; an alignment mechanism for aligning the controllable front wheel either generally parallel with a front-rear centre line of the truck when the truck operates in a first mode of operation, or generally perpendicular to said front-rear centre line of the truck when the truck operates in a second mode of operation; and a drive mechanism for driving at least one wheel of the truck in a forwards or reverse direction in response to an operator control; characterised in that said steering controller is operable in a normal steering mode to steer the rear steerable wheel in the same sense (clockwise or anticlockwise) as the tiller is rotated and in an alternate steering mode to steer the rear steerable wheel in the opposite sense to the rotation of the tiller; and the truck further comprising a steering mode selector for automatically engaging the alternate steering mode of the steering controller when the truck is in the second mode of operation and either (i) the tiller is positioned on the same side of the centre line as the controllable front wheel and the drive direction is such that the tiller leads the truck, or (ii) the tiller is positioned on the same side of the centre line as the castor front wheel and the drive direction is such that the tiller trails the truck.