CONTENT: dotted with concrete examples to better understand what is explained, useful tips to avoid mistakes, inconsistencies, confusion and frequent heaviness language (punctuation, spelling, pronouns, adverbs, conjunctions, subordinated, ...), for vary and harmonize texts, etc.
SHAPE: all is well presented, structured, fluid, light (but essential) and voluntarily colorful for easy assimilation.
Few large and small format, the book is misleading appearance with respect to its content.
An instructive help and can serve as a personal reference.