Katana is a lighthearted and engaging look at a young man who can communicate with the souls dwelling within swords. As a child he was cast aside by his peers who thought he was crazy, and he definitely doesn't want to be charged with the burden of running the family sword meister business. Nevertheless he finds that he keeps running across swords and spirits in need of assistance.
Katana is relatively episodic but unlike manga such as Pet Shop of Horrors, each chapter fits a little better together with recurring characters. There's a decent blend of comedy and drama, and the artwork is pleasant to look at.
While not the best manga I've read, Katana is a decent read for those into the supernatural.