The best courses for "process of buying and selling goods or services by offering them up for bid, taking bids, and then selling the item to the highest bidder", auction.
Beginners Guide to Importing Products: Alibaba to Amazon FBA
by Danny Guerin
eBay Dropshipping Academy: Ultimate Arbitrage Mastery Course
by Sergey Kasimov
Why 5,100 Students "Jump Right In" & Start An eBay Business!
by Eric John Campbell
E-Commerce Business Guide to Alibaba for eBay & Amazon
Secrets of Buying Auction Properties
by Heather Boren
Plantillas Powerpoint para Publicar en Mercadolibre y Ebay
by Jairo Carrizales
50 Top Products You Should Import for Sale on Amazon or eBay
by Entrepreneur School