Nowadays, scientific production has been given,in enormous importance, and, as a consequence interest has been focused also on journals and works itself as mere instruments of knowledge divulgation that contribute to the development of Science. Thus, bibliometric studies have great relevance within the scope of evaluation and assessment of the scientific contents. At the same time, they are most useful to allow a detailed approximation to the object of analysis and, in addition, to the data offered in regard to a given area of knowledge. A bibliometric analysis is achieved in the present work. Moreover, it is made oil the basis of four journals which are directly related to Health Psychology and Mental Health published in Spanish (Rerista Internacional de Psicologia Clinical de la Salud / International Journal of Clinical and Health Psychology, Clinina y Salud, Salud Mental, y Psiciologia y Salud) during 2001 -2002. Several factors have been taken into account when dealing with the detailed study of these journals. In these journals, first of all, it has been analysed, the number of articles which have been published in the selected and previously specified period of time; secondly, the nationality of the authors who have written the different articles, and after, the number of authors who have taken part in each of the works and the area to which their contents belong according to the classification achieved by the authors, and hearing in mind the type of examined articles. Different sections are included Under this classification; so it's worth mentioning Mental Health, to begin with. Under this heading should be included all those articles focused on psychiatric or psychological interventions related to the mental processes, their attention, pervention and promotion. The second place of the classification is occupied by the heading of physical Health. In this area are grouped all those written articles regarding psychiatric and psychological interventions focused oil physical alteration. In the third place, and under the category of Neurosciences, have been classified the articles focussed on the neuropsychology, experimental pschiatry, neuro and psychophysiology, prescribed drugs and all those areas concerned with the basic processes of the functioning of the brain. Finally, another category was added up. It was the so-called Inter-Area that included all those works that clue to their characteristics, could not be considered as proper or specific of a single area of knowledge. Information obtained after the analysis, reflects the fact that there are substantial differences between the journals, in regard to the number of articles being published. In such a way it is worth mentioning the detached journals of Salud Mental with a total of 85 articles published in these two years. We are lead to think that a having a larger number of annual editions implies to publish larger number of written articles, though this is not necessarily the case. It is, rather, a consequence of other priorities and characteristics pertaining to different journals. On the other hand, as a result of the analysis of different journals, substantial differences can be found in regard to the interventions of authors whose nationalities are not the same as that of the journal's. In this way, it is worth mentioning the Revista Internacional de Psicologia Clinica y de la Salud / International Journal of Clinical and Healh Psychology, with a contribution of ten different countries -in addition, to the Spanish authors- stressing the contributions of South and Central American Countries and, questioning, as with the other journals, the scarce representation from other European Countries. In contrast to this statement it is important to mention the relevance of the scientific collaboration between the different countries that may be observed in the shared scientific production. This fact also indicates the need to make known the different publications in order to increase the number of contributions from countries other than the journal's. In this same way, consideration is given to the influence of the diversity of languages in which each journal is published, in order to obtain some contributions from different countries. The index of authorship or the number of signers in each work also reflects different patterns among the journals; however, the great majority of them are oriented towards the so-called multiple,tutorship in,wich the works are signed by several authors, mostly two of them. The analysis of the contents shows the variety of areas of knowledge represented in the works which have been published in the analysed journals. So, in the journal Psicologia y Salud, we call observe a high degree of representation of articles of the area of Physical Health; however, in the Revista Internacional de Psicologia Clinica y de la Salud / International of Clinical and Health Psychology and in Salud Mental the contents are shared among various areas, a fact possibly due to the interests and profile of these journals. Any way, in the three above mentioned journals there is a larger number of written articles related to Mental Health. In addition to this, it is important to indicate that the varied richness of their contents shows the interdisciplinarity that exists in the treatment of Mental Health and also the difficulty in classifying the different treatments in the general and specific categories themselves. Focusing our attention in Salud Mental, it is convenient to point out how among the analysed journals this is the one that Publishes more contributions pertaining to different areas of knowledge, there is a greater number of articles in each of the marked categories; data in the area of Neurosciences is outstanding in comparisson to the rest of the analysed journals. Several final reflections may be made bearing in mind the information provided by this data, its usefulness and implications. Besides, we may point out their practical value for authors, readers and editors of the journals. As far as authorship is concerned, not only do they offer relevant information, in the face of the charcteristics of different journals -dealing with the thematic blocks preferably treated in their publications- but also, they illustrate the rules for publication suggested by each of the journals. Making known these rules, is a useful and valuable contribution, because sometimes the difficulties for publishing arise from to the author's lack of knowledge regarding publising requirements or even, to and, consequently, they make the wrong selection when sending their works. Taking into account the readers' positions, these works have a special interest as they orientate the bibliographic search offering a more concrete panorama of the type of available thematic blocks in the different publications. The journals acquire special importance for editors because they produce relevant information about the general characteristics showed in their publications. This could be very useful to implement strategies to give space to a determined type of articles that fit into the journal's profile.
