As the world's first comprehensive scientific and technical work "Heavenly Works" on agriculture and handicraft production, it attaches great importance to theoretical explanations, rather than pure technical descriptions, otherwise it is not much better than those recipes. Some experts believe that: Tiangong Kaiwu is not only China, but also a representative technical book for entire East Asia. It contains a wide range of technical categories unmatched by European technical books. According to this text, we can see that the most essential difference between `` Tiangong Kaiwu '' and the recipe is:. ['The former is a technical book and the latter is a reference book.', 'The former focuses on logic, while the latter focuses on an explanation.', 'The former attaches importance to theory and the latter attaches importance to technology.', 'The former is a scientific work and the latter is an operating procedure.']