Title: 70 Jahre BMW-Motorräder
Published by: Bleicher; 5. Aufl edition
Release Date: 1993
Contributors: Author Stefan Knittel
Pages: 392
ISBN13: 3883501654 or 978-3883501659

A complete 70-year history of BMW motorcycles up to the introduction of the R850/1100. Includes comprehensive model details and technical specifications, and an extensive section on BMW racing history. Text in German. Difficult to find and expensive.  Check with Amazon.
Hdbd. with slipcase. 392 pages, 1,652 B&W and color ill.

Genre: Competition, German Language, History, Technical
Title: Bahnstormer - The Story of BMW Motorcycles
Published by: Transport Bookman Publications, Ltd.
Release Date: 1977
Pages: 190
ISBN13: 978-0851840215

L.J.K. Setright was a very highly regarded writer for many auto magazines and in 1977 he authored this interesting and somewhat quirky book.

Genre: Competition, History, Out of Print, Technical
Title: Behelfs-Katalog 1950-54 BMW

Parts Catalog (reprint) in German only. An indispensible resource. Includes both old and current (revised) part numbers.

Genre: German Language, Parts List
Title: Behelfs-Katalog 1950-54 Einzylinder BMW

Parts Catalog (reprint) in French, English and German. An indispensible resource. Includes both old and current (revised) part numbers.

Genre: Parts List
Title: Behelfs-Katalog BMW R26/27, 50/50S, 60/69S
Published by: BMW
Release Date: 1972
ASIN: B007I6T55U

Auxiliary Parts Catalog (reprint) in French, English and German. An indispensible resource. Includes both old and current (revised) part numbers.  Currently unavailable but shows on Amazon.

Genre: Out of Print, Parts List
Title: Behelfs-Katalog BMW R51/2

Parts Catalog (reprint) in German only. An indispensible resource. Includes both old and current (revised) part numbers.

Genre: German Language, Parts List
Title: Behelfs-Katalog BMW R51/2-3, R67/3, R68
Published by: BMW

This parts catalog is pretty much required if you're interested in post-war plunger frame bikes. It was published in October 1960.

Genre: German Language, Parts List
Title: Behelfs-Katalog BMW R51/3

Parts Catalog (reprint) in German only. An indispensible resource. Includes both old and current (revised) part numbers.

Genre: German Language, Parts List
Title: Behelfs-Katalog BMW R68

Parts Catalog (reprint) in German only. An indispensible resource. Includes both old and current (revised) part numbers.

Genre: German Language, Parts List
Title: BMW /2 Electrics
Published by: Lulu Publising
Release Date: 2002, 2003, 2005
ASIN: B002AD266Q
Pages: 78

Doug Rinckes' book covers the electrical systems of the R25, R26 and R27 singles, as well as the R50-69S twins. It includes a great deal of information and procedures, and is heavily illustrated. Full color wiring diagrams are included, as well as specifications and common modifications. It's available from Bench Mark Works. It's softcover, wire bound, has 78 pages and 49 illustrations. Highly recommended!

Genre: Parts List, Service Manual, Technical, Theory
Title: BMW 500 and 600 Twins, 1955-1969
Published by: Haynes Publications (formerly by Clymer)
Release Date: 2000
Pages: 160
ISBN13: 0892872241 and 978-0892872244

From the Clymer Maintenance Manual Series. A very complete and easy to use manual covering maintenance, troubleshooting, complete disassembly and reassembly. Not as detailed as BMW's official Reparaturanleitung, but working on these old mounts is not exactly rocket science.

Genre: Service Manual
Title: BMW Fotoalbum 1923-1969
Published by: Johann Kleine Vennekate
Release Date: 2007
Pages: 144
ISBN13: 3935517297 or 978-3935517294

This hardback book is nothing more than a collection of private photos that, one way or another, include BMW motorcycles. Each photo has a brief caption. The reader encounters unique images of life on and with the motorcycle, motorcycle images from the start into the rapid 1920s, images of the mass-produced motorcycle of the 1930s and 1950s. Immerse yourself in the progress of past times, captured on photo plates and photo paper, reproduced in first-class quality in this work.

Genre: German Language, History