Linux: a QuickStudy Laminated Reference - Pamphlet, by John Hales - Very Good

Excel: Pivot Tables & Charts QuickStudy - Pamphlet, by John Hales - Good

Excel Tips & Tricks QuickStudy Laminated - Pamphlet, by John Hales - Very Good

Linux by John Hales (English)

Google Docs by John Hales (English)

Windows 8 Tips & Tricks, Paperback by Hales, John, Used Good Condition, Free ...

SQL GUIDE, laminated, 3 hole punched, (QUICKSTUDY: COMPUTER) by John Hales

Linux by John Hales (English)