Latest News



Sep 2017: Intensive revision class with the J2s!


Aug 2017: My second article published in the Economics Society of Singapore bulletin

BeFunky Collage

Jul 2017: Another successful book sale with my most able assistant – more than 300 copies sold!


Jun 2017: My first successful collaboration with two ex-students! Our first children’s book by Epigram.

Apr 2017: New book released – Masterclass in Economics! Look out for this in all major bookstores.

Apr 2017: 2nd edition of Mr Koh’s bestselling Economics Guidebook is out in Popular and school bookstores!

Mar 2017: Topical flashcards are up! Visit to access this tool to accelerate your content revision.