This is by far the BEST of the New Generation of Manga Artists series. It beats them all in terms of originality and charm.
The best quality I consider in this book is Renga-san's use of backgrounds. He uses up most of his canvas in a majority of his pieces with city scenes (something I'll always have trouble with ^^;;) or images relating to the character's personality (like my favorite, a cute girl with stereo equipment).
As for the characters, most of them are girls (one or two boys are thrown into the mix). The design is very unique and appealing, especially with the big eyes; the lines up close are pretty rough, so if you're sensitive about line quality, you might not be satisfied...however, I'd say they are far from unprofessional. As I mentioned with backgrounds, Renga-san does a lot with bringing out his characters' personalities; there's bonus profiles of some of them in the back of the book.
Unlike most of this series, there's no exaggerating body parts in this edition. There is quite a bit of unnecessary underwear scenes, some so random you wonder why they're even there.>__o;; Only about three of them are near provocative. All in all much tamer then the previous artist books.
I still love this book after 2 years...still use it for reference. It says in the back comments that Renga-san might consider doing another book in the future, and I would be happy if he did. He already has a nice portfolio site ([...] Anyway, highly recommended book for any budding artist!=D