-Music
-Books
-Arts (in general)
-Dark morbid perverted fantasies
-Writing short stories and poems
-Dark arts and occult
-Mythology
-Video Games: Half Life series, F.E.A.R., Farcry, Prince of Persia trilogy, Condemned: Criminal Origins, Call of Cthulhu: Dark Corners of The Earth, Manhunt, Burnout: Revenge, etc.
-Modernism/Postmodernism
-Surrealism
-Developmental & Evolutional Biology
-Neurosciences & Cognitive Sciences
-Advanced Mathematics (Dynamics and Bifurcation, Differential Geometry, Topology, Wave, Diffucsion and Harmonic Equations, etc.)
-Electrical Engineering related material (Neural Networks, Computational Intelligence, Fuzzy Logic, Digital and Analog Communication, Analog and Digital Filters, Wireless Communication Systems, Telecommunication Networks, Image Processing, etc.)
-Quantum & Particle Physics
-Chaos and Non-linear real-life dynamic systems
-Designing and engineering new systems and technologies
-Simulating how the human brain functions using Mathematics
-Quantizing, formulating and quantifying the universe
..
-Metal (Black, Melodic Death, Thrash, Doom, Progressive)
-Classical (Antonio Vivaldi is the greatest composer of all time)
-Progressive Rock
-Electronica (Psychedelic Trance, Ambient, Trip-hop).
Bands:
Iron Maiden
Opeth
Agalloch
Iced Earth
Solefald
TestAmenT
Paradise Lost
Eloy
Pink Floyd
Camel
Tangerine Dream
Yes
Gentle Giant
Aphrodite's Child
Judas Priest
Rotting Christ
Necromantia
Thou Art Lord
Septic Flesh
Varathron
Kawir
Nocternity
Order of The Ebon Hand
Arkhon Infaustus
Forgotten Tomb
Emperor
Dark Tranquillity
Arcturus
Mayhem
Haggard
In Memorium
Winter of Apokalypse
Operation Winter Mist
Absu
Enslaved
Windir
Taake
Moonsorrow
Bathory
Mythotin
Sigh
Satyricon
Misonthrope
Orphaned Land
Tierra Santa
Gates Of Ishtar
The Duskfall
Limbonic Art
Evergrey
Pagan's Mind
Vanishing Point
Deadsoul Tribe
Primordial
Akercocke
(old) Borknagar
Insomnium
Nightwish
Sirenia
Amon Amarth
Diabolical Masquerade
Finntroll
Destroyer 666
In The Woods
Crematory
Rammstein
Immortal
Tristania
Aesma Daeva
Green Carnation
Naglfar
Nokturnal Mortum
Mistigo Varggoth Darkestra
Profanum
Slayer
Melechesh
Root
Type O Negative
Peccatum
Summoning
Moonspell
Labyrinth
Therion
Evergrey
Wolf
Dead Can Dance
Boards of Canada
Horna
Ulver
Brotherhood Of The Wolf
Rosemary's Baby
The Omen Series
The Exorcist
Irreversible
City Of God
Quills
Se7en
Lyckantropen
Matrix
The Good, The Bad And The Ugly
The Texas Chainsaw Massacre
Suspiria
Apocalypse Now
Full Metal Jacket
Mulholland Dr.
The Lost Highway
Blue Velvet
Altered States
Pi
Requiem For A Dream
The Fountain
Reservoir Dogs
Pulp Fiction
The Wicker Man (the original)
Cradle Of Fear
Evil Dead
28 Days Later
Dark City
Naked Lunch
Dog Day Afternoon
Scarface
21 Grams
Fear And Loathing In Las Vegas
Bram Stoker's Dracula
The Last Temptation Of Christ
Fargo
The Big Lebowski
From Hell
Donnie Brasco
Malèna
U Turn
House Of 1000 Corpses
Ju-On: The Grudge
Un Chien Andalou
L'age d'Or
Battle Royale
Sex and LucÃa
Nightbreed
Ghost Dog: The Way Of The Samurai
The Vengeance Trilogy:
OldBoy
Sympathy For Mr. Vengeance
Sympathy For Lady Vengeance
Three Extremes
Heat
Sin City
Bad Education
Talk To Her
Downfall
The Skeleton Key
Howl's Moving Castle
Guzo
Lord of Illusions
In The Mouth of Madness
The Devil's Rejects
In The Mood For Love
2046
Jacob's Ladder
Anything by Pier Paolo Pasolini
Y Tu Mamá También
Chinatown
The Phantom of Liberty, The Discrete Charm of the Bourgeoisie or anything by Luis Buñuel
Anything by Akira Kurosawa
Diabolique (by Henri-Georges Clouzot)
A Hundred Years of Solitude (by Gabriel Garcia Marquez)
Metamorphosis (by Kafka)
Freedom or Death
Christ Recrucified
The Last Temptation
Zorba the Greek (all by Nikos Kazantzakis)
The President (by Miguel Angel Astorias
Anything by Nietzsche and Schopenhauer
Ulysses (by James Joyce)
The Divine Comedy
Paradise Lost
Anything by Federico GarcÃa Lorca
At The Mountains of Madness (by H.P. Lovecraft)
À la recherche du temps perdu (all volumes, by Marcel Proust)
The Mysterious Island (by Jules Verne)
The Elements of Mathematics Series (by N. Bourbaki)
A New Kind Of Science (by Stephen Wolfram)
Programming The Universe (by Seth Lloyd)
In Search of Memory (by Eric R. Kandel)
To name a few...