In earlier chapters, we saw how illustrations reduce the need for jargon, and work where literacy is limited or the audience speaks various languages. They facilitate a browsing approach to identification, which can be at least a useful starting point for identifying plants, and can show where details fit in the context of the plant as a whole in ways that words alone cannot. Even where the users think they know the plants, images are useful to confirm identification and for drawing attention to differences that might not otherwise be noticed. All users strongly prefer field guides that are illustrated and might not even try to use guides without them. They usually make the guide more attractive, more useful and likely to be used.