The book entitled "Alvin and his Inventions" is a book about alvin. Alvin is a boy who invents things to save time. He does so many wonderfuk thing to the extent that he saves a life with his which never fails. He is so fascinated about anything he makes with a sister called the pest.Alvin made a paper slinger to put newpapers at peoples doors. An automatic man trap to save and old woman who is pressurized by his nephew. Alvin became a hero after he made his electrical periscope. His last ambition was to make an instrument that will overcome gravity. He also planned to fulfill that using magnets.