Moshe ben Maimon (1135-1204) was a Jewish rabbi, physician and philosopher. He is most commonly known by his Greek name, Moses Maimonides (or more formally Rabbi Moses ben Maimonides), and subsequently many Jewish works refer to him by the acronym of his title and name, RaMBaM or Rambam.
According to Rambam, there are eight levels of charity, each greater than the next.
 The greatest level, above which there is no greater, is to support a fellow Jew by endowing him with a gift or loan, or entering into a partnership with him, or finding employment for him, in order to strengthen his hand until he need no longer be dependent upon others.
A lesser level of charity is to give to the poor without knowing to whom one
gives, and without the recipient knowing from whom he received. For this is performing a mitzvah
solely for the sake of Heaven. This is like the “anonymous fund” that was in
 A lesser level of charity is when one knows to whom one gives, but the recipient does not know his benefactor. The greatest sages used to walk about in secret and put coins in the doors of the poor. It is worthy and truly good to do this if those who are responsible for distributing charity are not trustworthy.
 A lesser level of charity is when one does not know to whom one gives, but the poor person does know his benefactor. The greatest sages used to tie coins into their robes and throw them behind their backs, and the poor would come up and pick the coins out of their robes so that they would not be ashamed.
 A lesser level of charity is when one gives to the poor person directly into his hand, but gives before being asked.
 A lesser level of charity is when one gives to the poor person after being asked.
 A lesser level of charity is when one gives inadequately, but gives gladly and with a smile.
 A lesser level of charity is when one gives unwillingly.