noun
illustrated reference book; pictorial book; field guide
A book that uses many pictures or photographs to identify and explain things, such as animals, plants, or vehicles. Often used for children's encyclopedias and nature guides.
子どもが昆虫図鑑をじっくり見ている。
The child is looking intently at an insect picture book.
この花の名前を図鑑で調べ
I looked up the name of this flower in an illustrated reference book.