The website of the Melbourne Wholesale Fruit, Vegetable and Flower Markets is an invaluable resource.
My first collaboration with them was on their Asian Greens and Tropical Fruits Guide which are no longer available online but may be found in brochure form at local greengrocers and which demystify over 50 types of exotic and mysterious Asian greens and rare tropical fruits respectively. 
The brochures feature colour photographs, full names and descriptions of the items together with tips for their use.
In addition to these brochures, the website features information on seasonal availability of hundreds of different fruits, vegetables and flowers throughout the year, tips for their use, recipes and a host of other useful information.
My latest collaboration with Market Fresh was the Fresh Asian Flavours recipe brochure.
Asian Greens and Fresh Asian Flavours can be downloaded as a PDF file by clicking their titles.