At the beginning you can find an introductory section which tells you all the vital information you should know about for the forthcoming sections. The definitions are clear, understandable will not leave you with further questions.
All the minerals, rocks and fossils are accompanied with a superb quality picture or figure. Once you have read the text, you can have a look at the pictures, which really show what has previously been mentioned.
If you are a keen geologist or you feel that it was not enough that you heard on the geography lessons, than you ought to have a copy of it. Buy one and you won't be disappointed.