Helvetica Neue LT com and Helvetica World

Hi guys,
I don’t have a printer. but I want to know if any one of you have used the Helvetica Neue LT com and Helvetica World fonts in their designs and how big are these fonts.

I am designing a business card, folder jacket and letterhead and I am worried the font may be too big. I don’t want them to be too big and worse too small and unreadable.

In the folder, the biggest font I have is 34pt and 24pt for the address on the back.
The business card I have 10pt as the biggest font and 9 as the smallest.

I don’t if I am allowed to post links here, but you can check this link and let me know if I should reduce some of the fonts. http://demos.rhesusmedia.com/nandt/corporateid/

Thanks.

9-10pt is easily readable so you shouldn’t have any problems with that.

In terms of your font being too big, what software are you using to create them? Should you be using Photoshop or Illustrator you can turn on the rulers, choose your font size and see how it sizes up. Then grab a ruler and compare it… That’s if you haven’t got a printer.

Thanks for the tip!