This is Henry Stevens' amazing book Hitler's Flying Saucers - A Guide to German Flying Discs of the Second World War (2003) which is probably the best english book available on the topic of German flying saucers which were designed and flown before, during and after World war 2. Stevens is a member of the German research project which collected a large amount of documents on 3rd Reich's secret weapons research. Painstakingly researched and compiled the book is well up-to-date, packed with a good ammount of technical information, including illustrations and photographs and above all - fully documented and referenced. Presenting amazing (and sometimes incredulous) theories, some of which have been vehemently denied by conventional authorities, Hitler's Flying Saucers is a singularly fascinating and thought-provoking study which is highly recommended reading -- especially for students of UFO phenomenon, military aviation, and suppressed history. Everything in this book is presented in a refreshing, opened minded manner so if you are an open-minded researcher, scholar, this book will even be more than insightful. 260 pages, many pictures. A must read for everyone.

From the backcover:
At last, the facts behind the legend of German flying saucers! Real photographs of real saucer designs by real people! Learn why the Schriever-Habermohl project was actually two projects and read the written statement of a German test pilot who actually flew one of these saucers. Learn of the Leduc engine, the key to Dr. Miethe's saucer designs. Learn how US government officials kept the truth about foo fighters hidden for almost sixty years and how they were finally forced to "come clean" about the foo fighter's German origin. Learn of the Peenemuende saucer project and how it was slated to "go atomic". Read the testimony of a German eyewitness who saw "magnetic discs". Read the US government's own reports on German fiel propulsion saucers. Read how the post-was German KM-2 field propulsion "rocket" worked. Learn details of the work of Karl Schappeller and Victor Schauberger. Learn how their ideas figure in the quest to build field propulsion flying discs. Find out what happened to this technology after the war. Find out how the Canadians got saucer technology directly from the SS. Find out about the surviving "Third Power" of former Nazis. Discover what problems remain to be solved on the trail of German flying discs. Find out how conventionally powered saucers can be made to move non-aerodynamically. Learn what mysteries are still contained in the engimatic word "Schildkroete". Learn of the US government's methods of UFO deception and how they used the German "Sonderbueroll" as the model for Project Blue Book. Finally, find out why this knowledge is so, so secret and to what lengths the government and those who really pull the strings will go to keep it that way.

Stevens.-.Hitler's.Flying.Saucers.-.A.Guide.to.German.Flying.Discs.of.the.Second.World.War.(2003).pdf 11 clicks

Some of the english books referenced or otherwise interesting to this topic:
Childress.-.Antigravity.and.the.world.grid.(1987).pdf 3 clicks
Coats.&.Schauberger.-.Living.Energies.-.Viktor.Schauberger's.Brilliant.Work.With.Natural.Energy.Explained.(2001).pdf 12 clicks
Coats.&.Schauberger.-.Nature.as.teacher.-.New.principles.in.the.working.of.nature.(1998).pdf 6 clicks
Coats.&.Schauberger.-.The.fertile.earth.-.Nature's.energies.in.agriculture,.soil.fertilisation.and.forestry.(2000).pdf 0 clicks
Coats.&.Schauberger.-.The.water.wizard.-.The.extraordinary.properties.of.natural.water.(1997).pdf 1 clicks
Disclosure.Project.Briefing.Document.(500.Pages.Of.Solid.Ufo.Evidence).(2001).pdf 31 clicks
Farrell.-.Reich.of.the.black.sun.-.Nazi.secret.weapons.&.the.cold.war.allied.legend.(2004).pdf 10 clicks
Cook.-.The.hunt.for.zero.point.(history.of.antigravity.research).zip 1 clicks
Electrogravitics.systems.-.reports.on.a.new.propulsion.methodology.zip 1 clicks
Collection.of.papers.on.antigravity.research.zip 0 clicks
King.-.Quest.For.Zero.Point.Energy.(2001).pdf 0 clicks
Lyne.-.Pentagon.Aliens.3rd.Edn.(1999).(biggest.expose.of.UFO-aliens.hoax.ever).pdf 10 clicks
Lyne-Occult.ether.physics-Tesla's.hidden.space.propulsion.system-2nd.edn.(1997).pdf 9 clicks
Valone.-.Harnessing.the.wheelwork.of.nature.-.Tesla's.science.of.energy.(2002).pdf 4 clicks

Some of the german books referenced or otherwise interesting to this topic:
Eckardt.&.Gehring.-.Flugscheiben.aus.der.Sowjetunion.(2001).pdf 6 clicks
Epp.-.Die.realität.der.Flugscheiben.(2002).pdf 5 clicks
Ratthofer.-.Zeitmachinen.(Reichsdeutsche.Flugscheiben).pdf 4 clicks
Stoll.-.Hochtechnologie.im.Dritten.Reich.-.Reichsdeutsche.Entwicklungen.und.die.vermutlich.wahre.Herkunft.der.UFOs.(2004).pdf 3 clicks
Zunneck.-.Geheimtechnologien.1.&.2.zip 5 clicks
Bergmann,.O..-.Deutsche.Flugscheiben.und.U-Boote.%C3%BCberwachen.die.Weltmeere.pdf 0 clicks
Flugscheiben.Bereits.1919.Arbeitete.Deutschland.An.Der.Entwicklung.Entsprechender.Technologien.VRIL.Haunebu.UFO.pdf 1 clicks
Heiner.Gehring.&.Karl-Heinz.Zunneck.-.Flugscheiben.ueber.Neuschwabenland.(2005).pdf 2 clicks
www.Mental-Ray.de.-.Das.Vril-Projekt.pdf 1 clicks
Haarmann.-.Geheime.Wunderwaffen.Iii.-.Uber.Den.Krieg.Hinaus.(1985).pdf 2 clicks
Haarmann,.D.H..-.Geheime.Wunderwaffen.pdf 1 clicks
johannes.Jurgenson.-.das.gegenteil.ist.wahr.-.band.ii.(2003).pdf 1 clicks
Schon.Heinz..Mythos.Neu-Schwabenland..2004..Uber.Hitler.am.Sudpol..Die.deutsche.Antarktis-Expedition.1939-39..Geheimnis.pdf 2 clicks

Please share this book with others, add links on other forums as I don't know many of them.