These pocket mountain guides are a perfect introduction to the areas described. There's always a good selection of walks, often giving an interesting new route on the hill. Of course each book gives you at least one route that's totally barking. In this case Lurg Mhor's a good example. The orthodox route's a hard short cycle in, a hard long walk and a fantastic whiz of a cycle out. Here a hard cycle in gets you to a reasonably easy approach to Bidean a Choire Sheasgeach. But he bodyswerves this to take you up a waterfall to reach the tricky scramble on the normal route. Then back to a tough cycle out. It's nonsense and I'm looking forward to trying it.
Anyway he also gives you good routes on all the Munros and many of the Corbetts in the area. If I was being picky I'd point out that it's easy to lose these wee books (I'm in at the moment ordering a new copy for that reason.) If you're new to the area annd worrying you might pick up one of the eccentric route by mistake, don't worry. As long as you don't choose a route that says 8 hours walking + 4 hours cycle you should be ok.