Graphic designers are increasingly adopting InDesign as their preferred page layout tool and are constantly singing its praises. I've personally been conducted numerous conversion courses for designers keen to make the switch from QuarkXPress to InDesign. However, as a trainer, I have noticed another trend: the widespread adoption of InDesign by corporations keen to have their own staff produce in-house documents which have hitherto been outsourced. Running training courses for this new type of user accounts for a significant amount of the InDesign training that I offer.

When attending a training course on InDesign, general users need more than an explanation of how to use the various tools and functions of the software. They need to learn about the page layout arena and how it differs from familiar programs like Microsoft Word. They need an overview of the typographical controls offered by InDesign, an explanation of how to specify colour for print and how to work with images.

InDesign is closely linked with postscript, an extremely accurate page description language used by numerous output devices. As such, it offers a great deal of accuracy in positioning and dimensioning elements on the page. Delegates should be made aware of the tools which make this accuracy possible. They should learn how to used guides and grids, including the baseline grid. They should at least come away knowing how to establish alignment and symmetry between the elements on the page.

The terminology used in InDesign often harks back to the pre-electronic typographic age and is often confusing to the general user. It's important to clarify these terms, perhaps by offering users a bit of background information and, wherever possible, by making comparisons with similar features in familiar software. For example, we might compare leading in InDesign with line spacing in Microsoft Word.

Because InDesign offers so much flexibility in transforming imported images, your average user often gets carried away and ends up scaling images up or down by huge factors. It needs to be explained that scaling up or down by more than 10% or so is undesirable since this can cause artefacts to appear in the printed image.

Colour terminology can also confuse the general InDesign user. The key facts that people will need to be taught here are, firstly, the difference between the RGB and CMYK colour spaces; secondly, how the colour print job gets separated into the four different plates and, thirdly, the difference between process and spot colours.

InDesign is created with high quality output in mind. New users, regardless of their background must learn how to pre-flight a document, fix any errors and then package the print job and/or produce a high- resolution PDF file.