noun
A book or pad used for sketching from life, typically outdoors.
彼は写生帖を持って公園へ出かけた。
He went to the park with his sketchbook.
Loanword from English; more common in casual contexts, while 写生帖 has a traditional, artistic nuance.
Compound of 写生 (sketching from life) and 帖 (book, pad).