The article "Simplified Design of Masonry Structures" covers different types of materials and construction methods used in building structures, such as brick masonry, concrete units, stone masonry, and miscellaneous masonry. It provides design examples and general concerns for building structures, aiming to simplify the process of designing masonry structures for various applications. The key findings include the importance of understanding the different types of masonry construction and how to use structural masonry effectively in building projects.