This paper explores the application of landmark-based planning algorithms, specifically focusing on AND/OR landmark extraction methods. Drawing from classical planning principles and recent advancements, we investigate the effectiveness of landmark extraction in guiding the search for solutions to planning problems. Our research questions center on identifying effective domains for landmark extraction, assessing the utility of extracted landmarks, and comparing our implementation with existing literature. Utilizing the Symbolicplanners.jl framework, we implement AND/OR landmark extraction and evaluate its performance across various domains. Due to challenges in implementation, the landmarks we were able to extract had limited meaning. We propose future work to refine the AND/OR method and expand our analysis to include the Hm procedure.