What Records Must an Organization Keep?

What accounting records should be kept by a public charity?
According to the IRS, in most cases, there is no required specific or special type of recordkeeping system. A public charity can implement whatever system works best for its staff, board, activities, and accounting system.
However, there are certain records that must be kept to show the organization’s financial activities:
The records must support all transactions, such: http://ow.ly/TTRPe