a major British literary prize, known as the Whitbread Book of the Year until 2006 when Costa Coffee took over as sponsor. At the beginning of January each year, five new British or Irish books are chosen as the best book of their type: best novel, best first novel, best book of poems, best biography and best children's book. At the end of the month, one of the five is chosen as the book of the year.
جایزه کتاب سال کاستا, جایزه بوک کاستا, جایزه ادبی کاستا, جایزه کاستا برای بهترین کتاب