The first book 'George and Flora and the Old Village Cat' is suitable for children aged 2-4 and here the kittens learn that there is another world outside their comfortable home.
In the second book 'George and Flora - Storytime' for 4-7 year olds, the Old Village Cat prepares the kittens for the world outside, alluding to some of the dangers out there that they must begin to prepare for.
In the third book 'George and Flora - Beyond the Cat Flap' for children aged 7+, George and Flora have left Oxfordshire and are getting to know their new home in Middlesex, and adjusting to a new life after their father disappears.
In the fourth book 'George and Flora Head to the Country' for children aged 7+, the cats discover the Yorkshire Dales, meeting a variety of animal characters and discovering the excitements of the circus. The different characters that the cats meet can provide an opportunity for children to learn about character, and discuss relationships with their parents (or Grandparents).