English language -- 55 Business -- 49 Computer programs 46 Management 46 Database management -- 35 Housing -- 33 Employees -- 32 more ... Marketing 31 Real estate agents 30 Methodology 29 Research -- 28 Real estate investment 27 Valuation 26 Law and legislation -- 25 Real property -- 23 Handbooks, manuals, etc 22 Training 22 Finance 21 Real estate business -- 21 Management -- 19 Training of 19 Leadership 18 Corporations -- 17 Report writing 17 Research 17 Valuation -- 17 Building -- 16 Real estate investment -- 16 Business enterprises -- 15 Social sciences -- 15 less ...