I won't go into vast details, as physics cover all areas of science in the universe practically. This boom delivers a good cross section of GCSE level physics. It is explained in a way that is easy to understand but maintaining the detailed information you hope to learn. Many book can sacrifice detail for ease of understanding, this does not do this.
It's quite a solid book too, reading 373 pages of content. After each section a small test is presented so you can test your knowledge, and go I've the section again if you missed bits. It's great if like me you are a layman in physics and are looking to perhaps study physics at a higher level and want somewhere to start at home. It doesn't assume any real physics knowledge and only basic mathematics.
The main failing of the book I have found is it omits showing the workings of equations, in the small tests at the end of the sections; in the back you are presented with the correct answer but not how to get there. In some sections I also noticed that it would say "simplified and rearranged" (when regarding an equation or term) "would give us the correct answer...". What it doesn't do is actually show how the equation was simplified and rearranged to get to the answer given. This can be frustrating particularly for home-learners and can often lead to some time scouring Google for the solution.
Other than this the book is well worth the money, it's very 1980s and the pictures show their age (blokes with big mop haircuts and handle-bar moustaches) but the content is sound and well presented.
If you are considering learning physics for any reason from the ground up, you could do much worse than buying this book.