One of the must - read 'Hellboy Universe Graphic Novels' is 'Seed of Destruction'. It sets up the origin story of Hellboy quite well. Another great one is 'B.P.R.D. Plague of Frogs', which expands on the world and the Bureau for Paranormal Research and Defense. And 'Hellboy: The Wild Hunt' is also very good as it takes Hellboy on an epic adventure.
In the 'Hellboy Universe Graphic Novels', 'The Crooked Man' is quite interesting. It gives a different perspective on the supernatural elements in the universe. 'B.P.R.D. The Devil You Know' is a significant one as it ties up a lot of the loose ends in the B.P.R.D. storylines. Also, 'Hellboy in Hell' is a must - read as it explores Hellboy's new situation after leaving the world of the living.
Definitely 'The Island. This graphic novel is a bit different from the others. It takes Hellboy to a strange island where he has to face various challenges. The art in this one is also quite unique, adding to the overall atmosphere of the story.
One must - read is 'The Dark Knight Returns'. It presents an older, grittier Batman coming out of retirement. Another great one is 'Batman: Year One' which details his early days as the Dark Knight. And 'Arkham Asylum: A Serious House on Serious Earth' is also highly recommended for its unique take on the Batman universe.
The main characters in the 'Hellboy Universe Graphic Novels' include Hellboy, who has to constantly battle his own dark nature while fighting external threats. Abe Sapien, who provides intelligence and a different perspective with his unique abilities. And Liz Sherman, whose pyrokinetic powers are both a weapon and a source of internal struggle. There are also characters like Professor Bruttenholm, who was like a father figure to Hellboy.
One must - read is 'The Flash: Rebirth'. It reintroduces key elements of The Flash's story and sets a new tone for the character in the Rebirth era. Another great one is 'Action Comics: Rebirth' which brings back the classic Superman feel. And 'Green Arrow: Rebirth' also stands out as it redefines Green Arrow's relationships and his place in the DC Universe.
The original Hellboy series is a definite must-read. It sets the foundation for the entire franchise and showcases the character's origins and early adventures.
One more that is highly popular is 'Hellboy in Hell'. It's different as it focuses on Hellboy's time in Hell itself. It's a very dark and introspective look at the character. The writing is excellent and the visuals are really haunting, making it stand out among the other Hellboy graphic novels.
I think 'Wake the Devil' is also very popular. It has a lot of cool elements like ancient evils awakening and Hellboy's struggle against them. The way it expands the Hellboy universe is really engaging.
A must - read is 'The Dark Knight Returns' by Frank Miller. It reinvented Batman for a new generation and had a huge impact on the character's darker, more gritty portrayal. 'A Contract with God' by Will Eisner is also important as it was one of the first graphic novels to be recognized as such. It tells a collection of stories set in a tenement building.
One must - read graphic novel is 'Maus' by Art Spiegelman. It tells the story of the Holocaust in a unique and powerful way, using animals to represent different groups. Another great one is 'Watchmen' by Alan Moore. It's a complex and thought - provoking work that deconstructs the superhero genre. 'Persepolis' by Marjane Satrapi is also essential. It gives an intimate look at growing up in Iran during a time of great change.
In my opinion, 'The Conqueror Worm' is among the best Hellboy graphic novels. It has a really engaging plot with Hellboy facing off against a powerful and ancient evil. 'Darkness Calls' is great too. It shows Hellboy's journey in a different light, with some amazing art that really brings the dark and spooky world to life. And 'The Crooked Man' is a must - read. It combines elements of folklore and the Hellboy mythology in a very interesting way.