books by subject
Spreadsheets

Statistics for Managers Using Microsoft Excel: International Edition

Spreadsheet Projects in Excel for Advanced Level 2nd Edition

Excel 2007 Dashboards and Reports For Dummies
EXCEL 3 for Windows in Business (Business Shortcuts)

Excel 2013 All-in-One For Dummies

Learn Excel 2011 for Mac

Excel for Beginners (Beginners S.)

Excel 97 Basic Skills (Software Guide)

Basic Excel 2000 (Ict Skills for Schools)

Advanced ECDL: Spreadsheets (Payne-Gallway Advanced ECDL)
