It is often argued that classroom diaries are subjective. This article explores the diary insights of a foreign language reading teacher. The inquiry was based on the following research question: What do the diary insights really evidence about the teaching practices of a foreign language reading teacher? As a research method, a case study was implemented. Five instruments were used to collect data: diary of the teacher, observations, questionnaires, tests, and focus groups. Given that motivation, interaction, reading improvement, and the application of reading strategies were supported by the research instruments, it would seem that a diary can be objective.