Does anyone know some good tutorials to handle spatial data in R? I know that there are some packages like rgdal and maptools but I haven't actually found usefull tutorials to get in touch with the basic functions (read, plot, change symbology, join data, etc.) and/or to get a broader overview what are the acutal capabilites of R for spatial analysis and manipulation of Spatial data. Also recomendations for books, papers, blogs, etc. would be warmly welcome.