The narrator of the book is an amiable dog called Bouncy Bernard. He presents the contents which are colourful and striking portrayals of well-known building machines and vehicles. There is an excavator, a cement mixer, a dumper truck, a crane, a cleaning car, a bulldozer, a road roller and a wheelbarrow.
The contents are accompanied by poems which describe each object clearly and comprehensibly to the youngest readers. The way the whole subject has been presented makes it easy for them to learn and remember. The book has been written with the youngest readers in mind.