There is a goldsmith school and a school for train drivers in Mj�lby. The town is a major station on the southern railway line connecting Stockholm and the southern parts of the country. The motorway E4 also passes through Mj�lby.
An older version of the place name is M�lloby, from the words mylna or m�lna, meaning "mill". Given the rapids of Svart�n and the fertile soils of the surrounding plains, Mj�lby is a natural place for a mill.
Municipalities of �sterg�tland:
Boxholm | Finsp�ng | Kinda | Link�ping | Mj�lby | Motala | Norrk�ping
S�derk�ping | Vadstena | Valdemarsvik | Ydre | �tvidaberg | �desh�g