am 23. Juni 1999
Most ESL(English as a Second Language) teachers recommend Oxford Advanced Lerner's or Longman Contemporary, but they are too much verbose and require great stamina to reach the right definition. POD is concise.
The most needed feature for ESL dictionaries is a broad recordings of idioms. At this point, all American ESL or paperback dictionaries are weak.(The papaerback ones are not designed for foreigners, of cource.) POD has decent number of idioms.
The second required feature is the coverage. POD has a little Americanisms - it's an apparent defect. But it contains few geographical or proper names, so it has much more common vocabulary than any other paperbacks.
I enjoy the easy-for-eyes typeface, also essential to old-aged-prone-to-eyestrain learners like me.