Somewhere around 17 billion why do you ask?
Nine
1000 copies have been sold
510,000 copies
9 well its 9 mission chapters 11 if you count the training and prologue
Gilt mirrors are mirrors that have been plated in a gold coloring. Many gilt mirrors are designed after European and Italian art.
40 Million Copies
320,000 copies sold as of now
For each book over 1 million copies have been sold.
Too many.
Over 500,000 copies of Nightmare have been sold as of 2011.
Over 1 million copies of White Fang have been sold worldwide.
Over 3 million copies of Tracy Beaker books have been sold in the UK.