In all these books, he provides routes up the major peaks, and many minor ones as well, not being totally obsessed with peak bagging, but rather the interest and enjoyment of a particular route. So the route on Stac Pollaidh in Wester Ross is described in detail, despite being only about 2000 feet in height, for example. The crest of the ridge presents many interesting scrambling diversions, including at least one "bad step" before the final peak. A bad step is an awkward point in a scramble where hand support is needed. Bad steps are also usually exposed to steep drops below, so need a good head for heights.