Castle is a Caldecott Honor award-winning book by David Macaulay published in 1978.The book offers a detailed illustrated description of Aberwyvern castle, a fictional castle built between 1283 and 1288. Like many of Macaulay's other works, it consists of a written description of the construction process accompanied by pen-and-ink drawings. A great deal of detail is put into the descriptions, and he describes the workers and tools that would have been needed for the construction of a medieval castle.