The study evaluated the lexical utility of English 1 and English 2, English language textbooks, which are supervised, produced, and distributed by Punjab Curriculum and Textbook Board. These are officially recommended (compulsory) textbooks for all public sector schools. The study calculated total number of words used (tokens) in the books along with different words (types) and headwords (families). It calculated the distribution of words introduced in the books in BNCCOCA levels of most frequently used words. The analysis was done using Compleat Lexical Tutor v.8.3 vocabulary profiler and its special advanced software VP-Compleat with criteria BNCCOCA-25. In addition, 'AntProfiler' software was used. Some manual calculations were also done. The analysis suggested the corpus of 993 words introduced in two books. These words mostly belonged to level 1 (69.68 percent), level 2 (14.9 percent) and level 3 (2.2 percent). Rest of the words belonged to levels from 4 to 14. The books need to increase number of words that fall under the first three levels of BNC-COCA 25 and reduce the number of words from higher levels.