Bilingual children's book (age 2 and up), English – Malaysian Tim can't fall asleep. His little wolf is missing! Perhaps he forgot him outside? Tim heads out all alone into the night – and unexpectedly encounters some friends… "Sleep Tight, Little Wolf" is a heart-warming bedtime story. It has been translated into more than 50 languages and is available as a bilingual edition in all conceivable combinations of languages. Buku kanak-kanak dwibahasa (2-4 tahun), b. Inggeris – bahasa Malaysia Tim tidak boleh tidur. Si Serigalanya hilang! Apakah Tim lupa Si Serigala di luar? Seorang diri, Tim keluar malam-malam untuk mencari Si Serigala – tapi tiba-tiba menjumpai orang yang tidak dijangka. "Selamat tidur, si serigala" merupakan cerita waktu tidur yang mengharukan. Ia sudah diterjemahkan ke dalam 50 bahasa dan sedia dibaca dalam edisi dwibahasa dalam apa jua gabungan bahasa.
Ulrich Renz was born in Stuttgart, Germany, in 1960. After studying French literature in Paris he graduated from medical school in Lübeck and worked as head of a scientific publishing company. He is now a writer of non-fiction books as well as children's fiction books. Barbara Brinkmann was born in Munich, Germany, in 1969. She grew up in the foothills of the Alps and studied architecture and medicine for a while in Munich. She now works as a freelance graphic artist, illustrator and writer.