What to read after Ullmann's Encyclopedia of Industrial Chemistry, Magnetic Materials to Mutagenic Agents?

For more than eighty years, the name Ullmann's Encyclopedia of Industrial Chemistry has been synonymous with information of the highest quality. Chemists and engineers in industry and academia know that they can rely on the knowledge and expertise of around 3,000 first-class authors. The Fifth Edition, now available in print as a complete set, is a monumental reference work containing about 1,000 major articles, more than 16 million words, 30,000 figures, 10,000 tables, and innumerable references to further sources of information.
Ullmann's users worldwide testify that this superb encyclopedia contains the most complete and up-to-date coverage of chemical technology currently available, including economic aspects, production, transportation, and toxicology. Ullmann's is unsurpassed in terms of organization and presentation.
The encyclopedia consists of 37 volumes: 28 "A" volumes, 8 "B" volumes, and one cumulative Index volume.
Volumes A1 - A28 contain alphabetically ordered articles on industrial chemicals, product groups, and production processes.
Volumes B1 - B8 describe in detail the principles of chemical engineering, new and proven analytical methods, and the essentials of environmental protection technology.
"This is a major work, which will prove immensely valuable to institutions and authorities related to the chemical industry." - Chemistry & Industry
"...no science or engineering library should be without it." - Angewandte Chemie
"Ullmann's might well be preferred...because of its many convenience features and excellent organisation." - Chemical Engineering