Supermarket bosses aim to roll the format out to all 498 supermarkets across the UK over the next year.
Customers can bring along unwanted books to donate and children can pick up a book for free.
Workers at XPO Logistics in North Lanarkshire self-isolating after testing positive for Covid-19.
The incident happened at an abattoir owned by Morrisons in Aberdeenshire.
Officers were called to the Morrisons store in Alloa, Clackmannanshire, on Monday night.