Introduction and Aim. Working Posture Assessment Methods in International Standards: ISO 11226 ? “Evaluation of Static Working Postures” (2000) and EN 1005-4 ? “Evaluation of Working Postures and Movements in Relation to Machinery”. A Review of the Main Working Posture Assessment Criteria in the Literature. The TACOs Method: Methods, Criteria and Implementation in Mono-Task Work. Timed Assessment Models Included in Multi-Task Exposure Indexes. Use of Simple Tools to Facilitate the Adoption of the TACOS Method for Postures: Example of Multi-Task Work Featuring Daily Cycle. Use of Simple Tools to Facilitate the Adoption of the TACOS Method for Postures: Example of Multi-Task Work Featuring Weekly/Monthly Cycle. Use of Simple Tools to Facilitate the Adoption of the TACOS Method for Postures: Example of Multi-Task Work Featuring Yearly Cycle. The Physiotherapist: Example of Analysis of Biomechanical Overload of the Upper Limbs and Awkward Postures of the Spine and Lower Limbs in Typical Tasks Performed in an Orthopedics Department. The Construction Worker: Example of Biomechanical Overload of the Upper Limbs and Awkward Postures of the Spine and Lower Limbs in Several Typical Tasks. Multi-Task Analysis of Biomechanical Overload and Working Postures Among Workers at Archaeological Digs. Analysis of Back and Lower Limb Postures Among Kindergarten Teachers. Studies of Biomechanical Overload Risk and Assessment of Awkward Postures in Vineyard Workers. Conclusions. Bibliography.