Impressions in Blood is the seventh studio album by Polishdeath metal band Vader. It was released on August 23, 2006 in Japan by Avalon Marquee with a bonus cover of "Raining Blood" by Slayer. In Poland, the album was released on September 1, 2006 via Mystic Production. The album was nominated for a Fryderyk Award in the category 'Rock/Metal Album of the Year (Album roku rock/ metal)'.
Impressions in Blood was recorded between April and June 2006 at Hertz Studio in Białystok, Poland, and was produced by the Wiesławscy Brothers. The album features cover art by Septicflesh bassist Seth Siro Anton. Dariusz "Daray" Brzozowski described the work on the album, saying:
The band entered the studio on 24th of [April]. First two days we spent on preparing everything, soundcheck and so on. Then I started recording my drum tracks which all in all took me 10 days... It's going to be the fastest album I've ever recorded, you will hear there a lot of blastbeats and fast double pedal drumming. This time for the recording I used OSCA 5B drumsticks, TAMA Starclassic drumkit with Ludwig 'Black Beauty' snare drum, Alchemy Professional cymbals, Aquarian Response II pads on toms and Hi-Energy on snare, Roland RT-7K triggers, D-DRUM module and finally, my current favourite thing — AXIS X-Longboards pedals which helped me to achieve a staggering level of speed.
A music video was shot for the song "Helleluyah!!! (God Is Dead)", which was directed by Andrzej Wyrozębski. Janusz Król was responsible for special effects and the set design for the video, while Sławomir Panasewicz was the cameraman. In Poland, Impressions in Blood landed at position No. 8, and dropped out five weeks later. The album also charted in Japan.