The bulk of this book is devoted to that peculiarly American phenomenon, the floral. This is a formalised still life of flowers, almost always with a cut-glass vase and often also a lace table cloth. It’s a style of painting I suspect you either love or loathe, although I also suspect that, in the right market, they’d be highly saleable. As a bit of variety, this also includes some fruit, which does tend to push it into the category of still life, rather than the purely floral.
It’s not really possible to recommend this as a flower painting book because it’s so specialised, but the demonstrations are well done and contain much useful and practical advice, particularly on glazing. If this is a style you think you might like to explore, then it’s a must. Otherwise, there is useful information to be gleaned, but you might find the pickings rather lean for the price.