Book excerpt: The main focus of this book is the investigation of linguistic variation in Spanish, considering spoken and written, specialised and non-specialised registers from a corpus linguistics approach and employing computational updated tools. The ten chapters represent a range of research on Spanish using a number of different corpora drawn from, amongst others, research articles, student writing, formal conversation and technical reports. A variety of methodologies are brought to bear upon these corpora including multi-dimensional and multi-register analysis, latent semantics and lexical bundles. This in-depth analysis of using Spanish corpora will be of interest to researchers in corpus linguistics or Spanish language.