Althea je autorkou približne 200 kníh, z ktorých mnohé si sama aj ilustrovala. Svoje prvé knihy začala písať v roku 1968 a s manželom si ich sami tlačili a viazali. Jej diela sa vyznačujú originálnymi príbehmi a často sa zameriavajú na zvieracie postavy s jedinečnými osobnosťami.
Written following current guidelines provided by the Health Education Authority, 'Lunch Boxes' takes a refreshingly realistic look at eating and touches on a range of food issues including vegetarianism and food allergies.
A book for young readers and adults alike. This book explains in a clear and simple way how The Stock Exchange plays a vital part in the country's business. It shows how we help savers' money grow. It tells how we help companies to raise money, to expand and provide new goods and new jobs. It explains the meaning of the words we use.