Book excerpt: Vastu Shastra is basically one of the important traditional sciences that proposes principles of proper architecture. The book, "Amazing Principles of Vastu Shastra" is based on the study of the authors dealing with construction of traditional dwellings, especially the Indo-Aryan houses. In this research it was observed that structure of the houses mainly follow a similar module regardless of the wealth of the owner; a module which is very close to the principles proposed in Vastu Shastra science of architecture. The universal principles of Feng Shui as another example of the sciences dealing with proper architecture can also be traced in the construction of such traditional houses. However, during this study, a number of differences between the practices introduced in Vastu Shastra and Feng Shui were noticed which are believed to be due to the differences in environmental configurations and cultural behaviors, especially regarding the knowledge of directions, slopes, etc. Therefore to have a thorough knowledge of the best energetic formation for architectural spaces, it is highly recommended to also study the book "Fabulous Principles of Feng-Shui."