'It's a constant struggle': Victoria's open letter to her kids
Here are just some of her words, in which she explains her and hubby David's approach to bringing up their four children - sons Brooklyn, 16, Romeo, 12, Cruz, 10, and daughter Harper, 3.
'They are a wonder to me every day. From a teenage son through to a toddler daughter, each moment of every day is filled with different energies, activities, feelings and a lot of comedy.
'Being in a position where they live such a privileged life, it is important that our children understand humility, that they appreciate how their parents have worked very hard to create this life for the family and that they, too, have a responsibility to work hard, be respectful and never, ever take anything for granted.
'Like so many working mothers all over the world, I feel the constant struggle to be the best mother I can, whilst setting a good example to my children to work hard. I travel for work when it's necessary, and I miss them all the time when I am away.
'I have always been a great believer that women should support women, and my admiration goes out to mothers everywhere, as they constantly put their own needs behind those of their children, embracing daily uncertainties and entering the new uncharted territories that each day brings, to be, in return, rewarded with joy and unending love.'