The construction site is still busy - what will happen there today? A crane, a mixer, a dump truck, various tools, but also a protective helmet - all of this is needed on the construction site. And those workers and craftsmen of various professions! On each page of this book, children will discover a short story that they can co-create using magnets. And when they've won to their heart's content, they can tidy up all the magnets back into the storage box, where they'll be ready for more great fun.