I don't think I would have bought this book if I hadn't seen the programmes. The book's layout has a one page photo of the finished meal, one of the work in progress and then, on one rather crowded page, the ingredients and the method - and because it's for the whole meal the method skips back and forth between dishes, so it all looks very busy. However, I watched the show and was inspired by Jamie - as others have said, 30 minutes might not be doable for those of us not quite so speedy but it's definitely doable in 45 to 50 minutes. So, under an hour and delicious...and no, that doesn't include the washing up (nor the full meal always) but I haven't suffered the wrecked kitchen effect as luckily I have a dishwasher.
Enthused by the gorgeous food and the simplicity of his serving style I've cooked the vegetarian rogan josh, the thai prawn curry with jasmine rice, the piri piri chicken and the jools pasta to date....Yes, it's no coincidence these were some of the first screened - they looked so good I was craving them. I can confirm that they are all delicious, although I haven't attempted all the sides or puddings.....I will have to buy a better food proceesor I think and a better chef's knife..oh and some more wooden boards!
Highly recommended
EDIT - an update to say that I'm still really enjoying the dishes in this book and loving the salads. As other reviewers have said you can get closer to the 30 minutes once you know a recipe. Love it.