For your interest in think! mathematics
Steps to Access Your Electronic Books
Register with Shing Lee Publishing
Head over to http://www.shinglee.com.sg/ebook and register by clicking on "Step 1"
Check Your Email for a Verification
Shing Lee will send you a verification email to make sure you're a human. If you don't receive it within a few minutes, check your SPAM folder. In that email you should click "Activate" and then you should be able to login with your email address and the password you just created.
Log in to the site
Log into the Shing Lee's site
Enter activation code
Enter the activation code you were given. Then scroll down and click CONFIRM
Refresh your browser
You need to refresh your browser once you've activated your code and the books will show