I haven't read either, but of the two I would recomend the Burpee book to beginners (and non beginners). Those folks have a lot of knowledge and the emphasis on organics probably means they will explain things in more depth than what the 'typical' book would that simply says do, this, this and then this and never explains why.

The other book is written by people in Europe and the environmental differences may not seem like much, but they are significant. Their experience is growing in a different part of the world than yours.

In general anything Burpee puts it's effort behind is quality. On that basis alone I would go with the Burpee book.