Complex sentence: At the 10th Annual Grammy Awards in 1968, "Sgt. Pepper" won in the categories of Best Album Cover, Graphic Arts, Best Engineered Recording, Non-Classical, Best Contemporary Album and Album of the Year, the first rock album to receive this honour.
Split into simpler sentences: At the 10th Annual Grammy Awards in 1968, "Sgt. Pepper" won in the categories of Best Album Cover, Graphic Arts, Best Engineered Recording, Non-Classical and Best Contemporary Album. It also won Album of the Year, the first rock LP to receive this honour.