This is a great book, much clearer, more comprehensive and better laid out than "Haynes" manuals I've used for other cars.
Using this book I've removed the gearbox and changed the clutch all without too much trouble.
The instructions are well explained for both dismantling and re-assembly. Picture are Black & white but are numerous and clear.
The only slight drawback is that for some of the minor engine work the book assumes that the whole engine has been removed first.
Assuming you've got the tools and a bit of experience this book would allow you to do almost any job on your Mazda.