This book is a companion to the Open University Cognitive Psychology module. If you do the course, you get a copy with the course materials. I bought my own copy to start reading before the course started, and wish I'd saved my money.
As a textbook, it does not bear comparison with the definitive work by Eysenck and Keane; this volume is far too `wordy' and succeeds in making some topics utterly incomprehensible. For example, I learnt logic at senior school level 30 years ago, and I'm sure I could give a better account than the one presented here.
I gave up on this book and used only Eysenck (and Andrade and May's `instant notes'), and got a level 1 pass. If I had stuck with this text, I'm sure my result would have been poorer.
Finally, If you are a student with a `global' learning style, this one is definitely not for you - each topic is developed in an entirely piecemeal manner, with no real sense of flow. Very disappointing, especially given the cost.