I would love to design attractive posters to inform teachers, students or parents about the activities at school. Although I may have many ideas, I am not very familiar with photoshop or any other advanced digital image editing application :(
If you have the same problem, let me tell you that there is a free web tool for educators that may help us: Juxio. Its simplicity allows people to easily create posters for display. It offers very complete HELP section with video tutorials, FAQs and hints.
Once you have chosen a template and edit your "Jux", you can print on your local printer. Or you can save it as a pdf file and send it by mail.