The chapter concludes with a detailed study of the computer program "PROGD" (Displacement Method of Truss Analysis). Chapter 5 focuses on continuous beam analysis, covering load transfer to degrees of freedom, stiffness matrix derivation, and support settlements. The accompanying program "PROGE" (Analysis of Continuous Beams by the Displacement Method) is used to extend the analysis to rigid frames without joint translation. Chapter 6 delves into plane frame analysis, including joint force calculation, local stiffness matrix analysis, and rigid frame analysis with axial deformation, using the program "PROGF" (Plane Frame Analysis). Chapter 7 neglects axial deformation in rigid frame analysis, focusing on global stiffness and deformation matrices, and the conjugate beam method, using "PROGG" (Rigid Frame Analysis Neglecting Axial Deformation). Chapter 8 discusses plane grid analysis, including torsion effects and elastic supports, using "PROGH" (Plane Grid Analysis). Chapter 9 covers space rigid frame analysis, addressing 3D space frames and proper angle inclination, using "PROGI" (Space Rigid Frame Analysis). Chapter 10 reports on limit analysis of continuous beams and rigid frames, using "PROGJ" (Limit Analysis of Rigid Frames). The final chapter focuses on plane frame analysis by the method of parts, using "PROGL" (Plane Rigid Frame Analysis by Parts). Appendix A provides additional examples and solutions using "PROGA" to "PROGL." The reviewer recommends the book for those interested in matrix analysis of structures, suggesting improvements such as more extensive beam element analysis and a section on vibration analysis.The chapter concludes with a detailed study of the computer program "PROGD" (Displacement Method of Truss Analysis). Chapter 5 focuses on continuous beam analysis, covering load transfer to degrees of freedom, stiffness matrix derivation, and support settlements. The accompanying program "PROGE" (Analysis of Continuous Beams by the Displacement Method) is used to extend the analysis to rigid frames without joint translation. Chapter 6 delves into plane frame analysis, including joint force calculation, local stiffness matrix analysis, and rigid frame analysis with axial deformation, using the program "PROGF" (Plane Frame Analysis). Chapter 7 neglects axial deformation in rigid frame analysis, focusing on global stiffness and deformation matrices, and the conjugate beam method, using "PROGG" (Rigid Frame Analysis Neglecting Axial Deformation). Chapter 8 discusses plane grid analysis, including torsion effects and elastic supports, using "PROGH" (Plane Grid Analysis). Chapter 9 covers space rigid frame analysis, addressing 3D space frames and proper angle inclination, using "PROGI" (Space Rigid Frame Analysis). Chapter 10 reports on limit analysis of continuous beams and rigid frames, using "PROGJ" (Limit Analysis of Rigid Frames). The final chapter focuses on plane frame analysis by the method of parts, using "PROGL" (Plane Rigid Frame Analysis by Parts). Appendix A provides additional examples and solutions using "PROGA" to "PROGL." The reviewer recommends the book for those interested in matrix analysis of structures, suggesting improvements such as more extensive beam element analysis and a section on vibration analysis.