Peter Piper Publishing has ceased operations as of February 2012. 

Due to current market conditions of the publishing industry combined with the decline in subscriptions, it became extremely challenging to maintain the operations of the magazine.
This Canadian company produced Yes Mag and Know Mag. Also please note that the Mad Science Group, although an affiliated company to Peter Piper Publishing Inc., is an entirely separate entity.  As of December 1, 2012, Peter Piper Publishing Inc. will no longer be in a position to issue refunds.  

We thank you for your past patronage and support and sincerely apologize for any inconvenience.