On the Insert menu, point to Text Box, and then click Vertical.
Click or drag in your document where you want to insert the text box.
When you insert a text box, a drawing canvas appears around it, but you can drag the text box off the canvas if you want.
TipYou can specify that the text box automatically expands to fit the text within it. Select the text box, and then click Text Box on the Format menu. On the Text Box tab, select the Resize AutoShape to fit text check box.