Customers have criticised it for its simple approach, with Christmas tips including words of wisdom such as: "Turkeys are perfect for feeding larger gathering".
A chapter on entertaining children advises: "For parties, wrap a small gift. Sit everyone in a circle and ask them to pass the parcel." Other tips include: "Store cupboards, drawers or boxes should be packed full of useful odds and ends."
The marked difference in book sales has been explained both by the willingness of Miss Middleton to sign copies in select stores, and the diligent support of her friends and family.
Karin Scherer, from Hatchards, said: "It's been our bestseller for the last three weeks running.
"The reports are that it's not selling so well in other shops, but we've been very fortunate.
"She [Pippa] has been in twice now to sign books and it appeals very well to our customers. They have flown off the shelves.
"I think a lot of our customers know her personally and of course want to support her. We're delighted that it's doing so well."
Full article at The Telegraph