The reading behavior level and the difficulties encountered in reading of grade 7 students of Presentacion National High School for the school year 2023-2024 was determined through the descriptive-correlational and research and development (R&D) methods; thus results were used as basis in crafting a behaviour-based enhancement book. Findings revealed that more than one-third of the students are demonstrating strong reading skills. There are 3 identified reading difficulties encountered by students such as, word reading with 83%; oral reading with 73%; and comprehension with 70%; whereas word reading was interpreted as satisfactory while oral reading and comprehension both did not meet expectation. Moreover, reading level and difficulties along oral reading and word reading is described as by the r-values of -0.340 and 0.7. On the other hand, between the reading level and difficulties encountered along comprehension is described by the r- value of 0.294; (among the difficulties encountered, it was only comprehension signified positive correlation on the reading level of the students. With the design of the reading behavior-based enhancement book, it got an overall average weighted mean of 4.71 and was analysed as excellently valid; and finally, the curricular validity of the reading behavior-based enhancement book resulted to an overall average weighted mean of 4.79; thus the curricular validity of the reading behaviour-based enhancement book was excellently valid.