Considering textbooks hold important role in teaching English as a foreign language and become one of the factors influencing teaching learning process, choosing an appropriate one (support the goal of the valid curriculum and cover standards/criteria of a good textbook) is very important since plenty of copy of textbooks are published every year whereas issues regarding the textbooks’ limitations have arisen recently. For that reason, teachers should be more critical in selecting a proper one before using it in classroom. In line with this, the writer has conducted a research concerning the issue and she analyzed one of the textbook used by several schools in Banda Aceh to see whether or not its content matchs with KTSP and holds the standards/characteristics of a good textbook. All data of this analysis were described qualitatively by using constant comparative method to examine its content. The result shows that this textbook needs to be adjusted to complete it since from 24 basic competences that should be accomplished, only 22 are covered. The two absent basic competences are in accordance with short functional text for writing, whereas in reference to characteristics, the textbook covers a number of them though it does not include teachers’ manual and glossary.