For a short time only, the book is on sale for $18.74 (25% off its current price of $25). It's worth considering, and especially at a discounted price.. but be quick! See here..
If you miss out, don't worry.. you can purchase it here from our online store for $18.24 (regular price)
( I only wish it were available as an e-book since it's the postage that's expensive for those in Australia and other overseas countries.)