CD, 4638 Pages, Spanish, Inches, Aguilar. DESCRIPTION IN ENGLISH: Manuel Seco and his dedicated group of language professionals developed this successful project over a thirty-year period. This dictionary is rich in grammatical information and especially in sentence syntax. This is one of the most complete and practical works of reference for the language professional (writer, translator, lecturer). But any well-educated reader will find this dictionary very useful especially for word usage.