From the site:
Face it--whether you are in Indonesia for one week or for 10 years, it is not only polite and useful to know a little of the language, in many cases, it is outright necessary. If you don't want to be trapped at the Hotel Borobudur or restricted to traveling with a translator, you need to be able to communicate with that cheerful, friendly, curious populace out there. This booklet provides one approach to learning a very basic level of the Indonesian language, Bahasa Indonesia, with no strain.