December 2014 Letters to the Editor Letters to the Editor AccessWorld News AccessWorld News Product Evaluations and Guides The Mountbatten Braille Writer Learning System from HARPO: Good for Children of all AgesJanet Ingber An Evaluation of the Orion TI-84 Plus Talking Graphing CalculatorTara Annis A Review of Prodigi Duo, the Electronic Magnifier by HumanWare: When Desktop and Handheld Magnifiers MeetJohn Rempel An Overview of OS X Yosemite for the MacJanet Ingber Echo Sense Network Glasses: Remote Vision for the BlindBill Holton Editor's Page Ending the Year on a High Note