Introduction to Jianzhan's shapes and sizes?

Do you know the four great mysteries of Jianzhan teacups?

Several good books related to Jianzhan are:

On the Issue of Rusting in Jianzhan Teacups.

Only by meeting these criteria can it be called "Jianzhan".

Jianzhan - Yang Min's Science and Art

Is Jianzhan poisonous?

"Jianzhan Teacups: Don't Believe These Rumors for Proper Understanding!"

"50 Yuan Jian Ware Cup Poisonous? Can Quality Jian Ware Be Cheap?"

Which one of the classic glaze colors of teapots is your favorite?

What are the inevitable characteristics of Jianzhan?

Jianzhan's pore misunderstanding fully resolved.