A 4-week jump-start guide, available on Scribd .

Are you interested in a specific area like , data visualization , or Agile methodologies ?

The "Bible" of business analysis. It defines six core knowledge areas and over 50 techniques. You can find various versions (including 2.0) and summaries for free on sites like Ivan Shamaev's Library or Archive.org .

How to Start a Business Analyst Career: The Handbook to Apply Business Analysis Techniques, Select Requirements Training, and Explore Job Roles Leading to a Lucrative Technology Career

Widely considered the gold standard for requirement engineering.

An educational manual covering theory, requirement properties, and software modeling. Downloadable from Togliatti State University .