The Cybook Odyssey HD FrontLight offers a choice of twenty levels of FrontLighting by sliding the regulator on the touch screen and adjusting the light power according to the environment.

ENGADGET: Bookeen Cybook Odyssey HD FrontLight joins the lit e-reader fray

He has taken an "anti-austerity" stance, criticising the "light touch" regulation of the banking industry and the government's programme of cuts.

BBC: Runners and riders: Green Party leadership

The researchers suggested this failure to transfer may be down to a lack of parental involvement or the "light touch" nature of the interventions.

BBC: Behaviour classes 'lack impact'