Sometimes for your workspace safety signs it is more efficient to use safety pictures instead of signs with wording, because they can be understood at a glance. This can make a big difference if you have people on your staff with sight problems, or who speak another language. A sign with a picture can be read by almost anyone, particularly if the picture clearly indicates what it is warning against.
Your signs can be graphic only, or a combination of graphics and text, which works well for some things. The graphic immediately tells the viewer that something needs to paid attention to, while the text can elaborate a little more. When you are designing the safety features and warnings for your workspace, consider getting a combination of safety signs. Some with safety pictures, others with text, or a combination of both. This will help ensure that both workers and customers stay safe while they are in your space.