Lighting designer James Bedell is quite unusual among lighting designers, in supporting the ban (or phase out) of incandescent bulbs for ordinary use.
Whatever one's opinion on that particular issue, he has, as reviewed before, written an interesting e-book on lighting, "Losing Edison" encompassing all areas of home use, thankfully including halogens for those who like incandescents, and with an interesting project development section as described.
His enthusiasm also shines through in welcoming feedback and offering personal lighting advice to those who purchase his e-book.
An update video by James himself talking about the e-book, including promotion price of $4.99 for May 2012.
The regular, or initial, price last December was 11 dollars, as per the linked review, which has also been updated.