[Free eBook] The Dragonflies: The Story of Helicopters and Autogiros 1919-1970 by Robert Jackson [Aviation History]

The Dragonflies: The Story of Helicopters and Autogiros 1919-1970 by Yorkshire-born British author Robert Jackson, a former pilot turned prolific author of military & aviation thrillers and history, is his vintage aviation history, free for a limited time courtesy of publisher Endeavour Press.

This was originally published in 1971 by Arthur Baker Ltd under the title The Dragonflies: The Story of Helicopters and Autogiros. This book covers the history of helicopters in modern times, with a brief overview of early medieval and Renaissance attempts at envisioning this form of flight, and then going on to the actual 20th century development of viable versions of it and various uses (primarily focused on military and search & rescue operations, but also a few chapters for travel and news reporting, etc.) up until the then-present day (circa 1971).

Offered worldwide, available at Amazon.

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[Free eBook] Murder, Suicide or Accident: The Forensic Pathologist at Work by Bernard Knight [True Crime Professional Memoir]

Murder, Suicide or Accident: The Forensic Pathologist at Work by Welsh author Bernard Knight, who has also written the popular Crowner John mystery series, is his vintage non-fiction professional overview cum memoir, free for a limited time courtesy of publisher Endeavour Press.

This was originally published in 1971 by Robert Hale using the Bernard Picton pseudonym. This is a combination of Q&A and true crime memoir about forensic pathology in Britain in the decades leading up to the 1970s, drawing upon the author’s own personal experience, which he would later incorporate into his bestselling mystery novels. Although this has not been updated to cover developments in the years since, the original information about investigative procedures and medical knowledge still provides a nifty snapshot of everything you might want to know about what could be detected from potential crime scenes and how it was handled back then.

Offered worldwide, available at Amazon.

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[Free eBook & Audiobook] Teknologi by Kasper Hedegård Schiølin [Danish Technology & Social Effects Academic Essay]

Teknologi (Technology) by Kasper Hedegård Schiølin, a Visiting Postdoctoral Fellow at Harvard University, is the 42nd in the Tænkepauser (Reflections) series of accessibly-written Danish-language short introductory essays on various academic topics, free for a limited time courtesy of the Aarhus University Press in Denmark.

This essay covers the topic of technology and its effects on society, both positive and negative, as our modern world is viewed through technology-tinted glasses.

Offered through October 10th, available DRM-free worldwide.

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[Free eBook] Coast Lines: How Mapmakers Frame the World and Chart Environmental Change by Mark Monmonier [Cartography & Earth Science]

*Coast Lines: How Mapmakers Frame the World and Chart Environmental Change** by Mark Monmonier, a Distinguished Professor of Geology at Syracuse University, is an overview of how cartography aids with geology, free for a limited time courtesy of the the University of Chicago Press.

This is a layperson-accessible read, using both historical accounts and modern anecdotes to explain the tools and techniques that mapmakers use to measure and record assorted geographical data with an eye to turning it into maps, thus enabling scientists to chart change over time. Offered through the month of June, available worldwide DRM-free.

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[Free eBook & Audiobook] Overvågning by Anders Albrechtslund [Danish Academic Surveillance Ethics Social Sciences Essay]

Overvågning (Surveillance) by Anders Albrechtslund, a former Information & Media Studies faculty member at Aalborg University in Denmark, is the 39th in the Tænkepauser (Reflections) series of Danish-language accessibly-written short academic essays meant for a general audience, free for a limited time courtesy of Aarhus Universitetsforlaget.

This essay is part of the Samfundvidenskab (Social Sciences) subject category, and is on the topic of the ethics of surveillance and monitoring and its effects on communities and society, both positive and negative. Offered through May 9th as an e-book and accompanying audiobook reading, available worldwide DRM-free.

available worldwide DRM-free through May 9th

[Free eBook] 5 books on technology, society, activism, etc. [Non-Fiction]

In tribute to the late Aaron Swartz, a computer programmer and social activist who was involved with developing projects like the Creative Commons, the Markdown markup language (which, incidentally, most of this blog’s posts were written in) and others, 5 (6 outside of North America) non-fiction books related to technology, intellectual property, social activism, and other subjects important to him are free for a limited time, courtesy of his publisher VersoBooks.

This is being offered to celebrate the publication of Shwartz’ own writings, and the books are (mostly) available worldwide through March 31st.

available worldwide DRM-free through March 31st