Luis H. Gonzalez 
Understanding and Teaching the Indirect Object in Spanish [PDF ebook] 

Understanding and Teaching the Indirect Object in Spanish presents an easy-to-understand approach to all aspects of direct and indirect objects in Spanish. Distinguishing between direct and indirect objects can pose challenges for learners and is almost impossible to do using the tools that linguists have traditionally used. This book offers two simple, all-encompassing inferences that allow learners to tackle this area of language by intuitively inferring the distinction, as native speakers do, between verber and verbed. This book will be of interest to teachers and learners of Spanish and other second languages, as well as linguists interested in argument structure, second language acquisition, second language teaching or pedagogy, and multilingualism.