You have released the final book of Make: Sensors and Emailed me that I should update the book.
The Authors have changed the PDF image from Make_ Sensors.pdf (59,940KB) to Make_Sensors (421,271KB) and likely because of the size dropbox does not work and Amazon cloud-front is very cranky.
I would propose that you review the PDF image since the Make_ Sensors.epub is (14,896KB) likely a setting is incorrect on the pdf creation engine. Antenna House pdf creation library was used under Ubuntu. Used under AH CSS Formater V6.0 MR2 for Linux64: 18.104.22.16872 size 411.40MB 7.5x9.25" 402 pages. (5/5/2014)