I can't praise this product highly enough! It's just awesome.
It needs a bit of explanation as it is not a "standard" supplement for superhero games. It takes as its premise an alternate to our eath, where H P Lovecraft spent a lot of his career writing for the comics industry, and in particular for Nedor comics. Nedor characters are out of copyright, and not especially well-known, which makes them perfect for this product.
The first part of the book deals with the fictional history of Lovecraft's career as a comic book writer, and there is a helpful afterrword and (actual) bibliography, but the bulk of the book is imaginative write-ups of all the major (and a few minor) Nedor characters, as well as some Lovecraft character using T&J rules, but all with a distinctive Lovecraftian Twist.
For example The Dream Master is Randolph Carter, clearly taken form Lovecraft's tales, but turned into a superhero, with magical powers and the ability to enter the dreams of villains (as well as the Dream lands). The Liberator, who gains his superpowers from the ancient Egyptian serum/formula Lamesis, later discocers it is the blood of a monstrous and inhuman "living mummy" trapped beneath "the Red Pyramid of Abyssinia"!
Many of the villains are taken form Lovecraft's stories - Azenath the Body-Snatcher; Baron von Junzt, the Black Scholar; Dagon; Keziah the Witch and so on. They are all lovingly described and illustrated.
Finally there is a helpful section on how the write comics "the Nedor-Lovecraft way", and rules for sanity (or the loss of it!) with abilities such as Unearthly, and Super-Unearthly.
Its really well put together and highly imaginative, and for those wanting to run a campaign of this particular type, it is indispensable. The group I game with ran the whole of the epic Masks of Nyarlathotep campaign with the characters as superheroes - and it was great. I recommend this product wholeheartedly.