Creative and metacognitive thinking are included in the realm of higher-order thinking which involves active control in cognitive processes to solve a problem. Various efforts to improve the mastery of creative thinking and metacognitive skills are needed, one of which is through the use of problem-based collaborative learning model books that stimulate students' creative and metacognitive thinking skills. This research uses research and development (R&D) methods and aims to test the validity of the problem-based collaborative learning model book. While the data collection using the questionnaire method. The book development uses the Plomp model, so the use of the book needs to be validated, in this case, the book was validated by three experts using V Aiken, the validation results showed content validity 0.919 by experts, construct validity 0.903 by experts with valid categories and can be used to determine the increase in thinking skills creative and metacognitive students. It is recommended for lecturers to apply a collaborative problem-based learning book model and emphasize creative thinking and metacognitive skills in the learning process.