This book, intended for students of Architecture or structural engineering, addresses the basis of structural design according to procedures and provisions set in the Spanish Building Technical Code (CTE DB-SE & CTE DB SE-AE) and in the Code for Seismic Design of buildings (NCSE-02) Provisions and requirements specified in these Standards related to structural safety and serviceability, limit state analysis, actions on buildings and earthquake resistant design are included and explained. A collection of practical examples illustrates key points and clarifies the implementation of these Standards to the structural design of buildings All tables needed to follow every step of the process are provided in this manual