"Thick As A Brick" is a progressive rock album by the British band Jethro Tull, released in 1972. The album is known for its unique structure, presented as a single continuous piece of music divided into two parts, reflecting a satirical take on the concept of a rock album as a serious art form. The album's lyrics, written by lead vocalist Ian Anderson, are presented as a fictional poem by a character named Gerald Bostock, a young boy whose work is published in a fictional newspaper. The album received critical acclaim and is often regarded as one of the defining works of the progressive rock genre.