This study is about grammatical and lexical cohesive devices that are used in advertorials
in the Indonesian newspapers. The writer realizes that writing advertorial in very limited
space need cohesive devices to make it efficient yet detailed and understandable for the
readers as the prospective consumer. This study is conducted in order to give more
reference to the students of English Department majoring in linguistics, especially who is
interested on cohesive devices, and with the hope that they to be able to produce
efficient and clear ideas or information. It is not only for them but also for the advertising
agency to realize the importance of cohesive devices. This is a descriptive-qualitative
study, as the writer describes and explores the cohesive devices without making any
generalization from the findings. In this study, the writer acts as the key instrument to
collect the data. The cohesive devices in this study are identified and classified based on
Halliday and Hasan?s Cohesion in English and Keraf?s Tata Bahasa Indonesia. He
found that of the grammatical cohesive devices; additive conjunction, were found the
most, and of the lexical cohesive device; repetition-wholly repeated were found the
most. By this study, the strategy to create an efficient and effective writing is revealed.