Some references will be more helpful than others depending on local needs. Also, your unit may have special needs for additional references. Many of these references and pamphlets make helpful training development and presentation tools. The Condensed Chemical Dictionary. This is an excellent source of chemical names and synonyms.
Hazard information is limited.
Originally a compact desk reference. The latest versions are three volumes and very expensive. It does contain lots of hazard information. This is boarding bag size and contains lots of good, basic hazard information. Documents procedures for conducting marine chemist testing and issuance of certificates.