No I have not read it all, it's huge. But I bought it some years back from a charity shop and every time I have a "how the hell do I do that" question, this book has the answer.
It's also introduced me to some amazing embroidery styles (blackwork is gorgeous, and now I know what the hell darning is...), has very clear images about how to learn pretty much all of the needlework techniques required for most standard things, how to preserve your work, and gives a good comparison of example and real images to show how the stitch (should!) turn out.
AND it also gives patterns near the back for things like crochet, so serving as a total start to finish garment guide. Not bad for a couple of quid.