Ebooks are a great source for all types of information! You don't need to read the whole book to find it useful. Browse through the Table of Contents or search within the ebook to find the chapters and sections with the information you need.
Here is a suggested list of keywords to try when searching:
clients OR consumers
consumer behavior OR consumer behaviour
consumer trends
consumer attitudes
customer loyalty
demographics OR demography
interest groups
market research
market segments
marketing AND strategy
niche marketing
statistics
target marketing
target markets