Encyclopedias and dictionaries are useful publications to get a first introduction to a specific topic. You will find explanations and definitions for specific terms as well as references and suggestions for further reading.
For economics, New Palgrave dictionary of economics is a good resource.
Also, check out Britannica online which includes the complete encyclopedia, as well as Merriam-Webster's Collegiate Dictionary and the Britannica Book of the Year.
Below, you will find a few other suggestions of encyclopedias within some of the fields of business and economics. To find others you can search in Primo for encyclopedia/dictionary and your field of study.
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