Victoria BeckhamVictoria BeckhamWearing flats with skinny jeans is just wrong...

At least, that's what fashion guru Victoria Beckham says in her new book.

And Posh doesn't mind which A-listers she offends.

The book, called That Extra Half Inch, will have trend-setters rethinking their wardrobes.

Take Kate Moss - she often steps out in flatties and drainpipe denims but even she runs the risk of looking "like a golf club" by sporting such a combination, according to VB.

And then there's the wedge... not a great fave with our Victoria, even if they are the current trend.

"Some wedges are great but you can look like your feet are cased in cement," she writes.

Posh demonstrates the lookPosh modelling the jeans she designed for Rock & RepublicThat's one for fellow Wag Coleen McLoughlin to think about.

Victoria's also concerned about her smalls - to make the best of your breasts it's time to ditch the lace...

"I hate those silly lacy bras with all those bits poking out beneath your top.

"You end up looking like you have four breasts," she claims.

Fashion's always been a passion for Mrs Beckham, who confessed to carrying her school books around in a Gucci shopping bag.

There are style tips aplenty in the book, which is co-written by Hadley Freeman.

Vic signed a multi-million pound deal for That Extra Half Inch, which is due out in October - one for the Christmas stocking, as long as it's 10 denier, of course.