The guarantees are an important subject in the study of the civil right, nevertheless, we must put record that extends to other legal disciplines, within which we must mention the case of the enterprise right and corporative, that is to say, these two last ones do not impolican the same, but they talk about different subjects. That is to say, the first sandal to the second or said of another form the corporative right form leaves from the enterprise right. The book study matter is a work of two volumes of our responsibility, which we hoped that it has been to the liking of all, for this reason, we considered opportune to recommend its study to effect to know this subject in somewhat panoramic form, for this reason, if a lawyer does not study this book is clear that to him it will become difficult to study and to know the guarantees. In this book works published already are inserted previously, as it is for example the case of the antecedents, mortgages, proof of title to real property of judicial, safe documents, among others so many subjects, which implies that for the publication of the same the idea has matured and in this order of ideas are clear that it must be matter of study on the part of the students of the right. ent Partners oftentimes addresses this issue. If we studied the antecedents study important subjects, within which we can mention the case of the classification of the guarantees, being one the one that it classifies to the same in real personal and, being within the first letter of guarantee and within second it mortgages and the moving guarantee. Another important subject that it deserves to be tocaso is the case of the mortgage, which does not fall on or but on the right that is boasted on or, for example on the right of property, use, usufruct, room, mortgages, among others so many, which must motivate studious studies by part delos of the right., And in any case which is developed to an important subject for the moving guarantee as it is by the way his new features and in addition the judicial intervention in this subject, we hoped that it motivates the study of these legal subjects, but with all the sources of the right, that is to say, not only legislation, which must be matter of study on the part of the treaty writers.