Creating books where content and form are closely related is very important to Boom. She aims to inspire discovery and interaction. Scent is one of the unusual features Boom utilized in one of her book designs, in collaboration with an artist. Her conceptual book design for The Road Not Taken with artist Job Koelewijn has 718 pages printed using ink mixed with a base of bouillon. Coffee filter paper is another unusual material choice that Boom used for a book about water in Scotland.