Great book. It contains exercises that you can do on your own, as well as in school/tutoring. It continues from where A2 ends, plus a few things like the simple conditional. The explanations are very clear. It also includes a code for online resources where you can find the audio of the book and other things like extra exercises, vocabulary, etc. I recommend it!

I had studied Spanish at a university in Spain up to level B2 ten years ago, and then I stopped. My goal was to now do a good review on my own in order to take the Spanish Language Certificate in Greece next year. I found this specific book very difficult to understand and without any plan or progressive difficulty sequence, so that someone studying on their own from an A2 level could smoothly progress to B1 and reach B2. On the contrary, this book, from the first chapter and in all the subsequent chapters, uses vocabulary and grammar that already presuppose B1 to B2 knowledge, and the difficulty is approximately the same in all the chapters, rather than progressively increasing. Of course, I do not know what specific program Greek Spanish language schools follow and to what extent this particular book fits into their program. I am purely stating my personal experience and opinion regarding the usefulness of this book for learning/reviewing Spanish without a teacher.