Oliver's Great Big Universe

In this book, Oliver delves into the world of earth sciences, specifically volcanoes, with the help of his friend Sven and Aunt Dee, a volcanologist.

The story uses vivid real-life comparisons to explain scientific concepts, such as the similarities between volcanic eruptions and human bodily functions.

Oliver and his friends aim to win the science fair, facing challenges and learning valuable lessons about friendship and science.

The book is illustrated with cartoon-style drawings and is part of the 'Oliver’s Great Big Universe' series.