This book is yet another re-release of Masutatsu Oyamas book "Essential karate". It has also been released under the name "Complete karate course", and "Karate school".

Only the name and cover has been changed (and the Taekwondo uniforms and practicioners on the cover on this latest version is the source of some amusement in kyokushin circles -probably the work of a editor that didnt know what he was doing and didnt know the difference), the contents are identical. If you already own any of its previous incarnations, dont bother with this one.
Its annoying that they keep changing the name for every new release.

If you ignore the name/edition confusion, it is a Good book on kyokushin karate basics. It is a bit dated with a 70ies feel and outdated techniques for grading purposes, but mostly it is a worthwile buy for any kyokushin karate practicioner.

Mainly it is a walktrough of the basic karate techniques as done (back then) in the kyokushin style. There are also sections on warmups, breathing, self defense and more -mostly to short to be useful as anything but inspiration.
It gets a bit confused and obscure occationaly. But it is still better than most books on karate released today.
I rate it a 4, but for non-kyokushin karate stylist a 3 would probably be more appropriate.

I own this book under it'sother title, while I am not a kyukoshinkai guy, I do wonder when they started using Korean pullovers s uniforms...
Otherwise, great book. Oyama has written exactly one book on karate, and gave it 37 different titles.
Buy any of them, and you know what his other titles offer.