author
A Hungarian legal scholar and child-welfare advocate, he wrote about the protection of children with unusual breadth, linking social policy, law, and the scientific thinking of his time. His best-known work, published in English in 1912, reflects an early effort to treat child protection as a serious public question rather than a private concern.

by Sigmund Engel
Sigmund Engel is known for The Elements of Child-Protection, published in English in 1912 and translated by Eden Paul. The book presents child protection as a wide social issue and explores it through law, public policy, and social science.
The title page identifies him as a Doctor of Laws and of Politics and as an official guardian and advocate in Buda-Pesth. In the book's preface, he explains that he wanted to study child protection from the combined perspectives of the modern socialist movement and modern social science, which gives his work a distinctive reform-minded character.
Little biographical detail was readily confirmed beyond his professional role and this major publication, so his public profile today rests mainly on that book. Even so, it offers a revealing glimpse of an early twentieth-century thinker trying to understand how society should care for its most vulnerable children.