This is a great Vivaldi book. Most of the concertos have similar melodies, but have entirely different moods. There are so many concertos that it takes a long time to play them all. I believe it is a great buy and it has comments at the end of the book telling you how the pieces were obtained, etc.
While listening to music, I like to have a score with me. This book is quite complete and clear. Listening to the music and have my thought flowing with music. This book helps me to understnad the harmony of these melodies.