Card of the book IS A BOOK OF 2 ª I RUN Title(degree): On the concept of model Authors: W. Nash, F. Stuart, J.B. Mc Loughlin Publishing house(editorial): E.T.S.A.M. Year of edition: 1971 Number of pages: 128 Royal(real) size of the book: 11,5 x 16,5 cm Impression of interiors: target and negro Weight of the book: 125 gr Synopsis: On the concept of model it is a compendium of works, based on the processes of deduction, induction and reasoning, applicable to the urban development planning The concept of model has multiple systematical options in his(its) development, though they are very primary his(its,her) origins " providing that it(he,she,I) is(am) possible the deduction is used - confesses Nash-, when the deduction is not possible, it(he,she) will give step to the intuition, of an explicit way " This compendium published by the School of Architecture of Madrid, tries to spread an introduction to the concept of model that, in spite of his(its) marked accent of urban development approximation, his(its,her) concepts smell of the specializing borders of this science.