Bach-Gesellschaft edition. For harpsichord, piano, other keyboard instruments. English Suites, French Suites, 6 Partitas, Goldberg Variations, 2-Part Inventions, 3-Part Sinfonias.
Here's a sample of other books in this Dover category
Miscellaneous Keyboard Works: Toccatas, Fugues and Other Pieces by Johann Sebastian Bach Over 40 pieces, many difficult to find elsewhere, including harpsichord toccatas, Capriccio on the Departure of His Most Beloved Brother, 6 Little Preludes, more. Breitkopf & Härtel edition.
The Art of the Fugue BWV 1080: Edited for Solo Keyboard by Carl Czerny by Johann Sebastian Bach, Carl Czerny Uniquely complex in form and structure, Bach's counterpoint masterpiece represents a pinnacle of Western music. This edition was edited by Czerny, whose études remain staples of modern piano training.
Great Fugues for Solo Keyboard by David Dutkanicz In addition to several compositions by J. S. Bach, this collection features pieces by Frescobaldi, Scarlatti, Giambattista, Handel, Mozart, Beethoven, Mendelssohn, Robert and Clara Schumann, Brahms, and Saint-Saëns.
Goldberg Variations: BWV 988 by Johann Sebastian Bach Starting the theme with a stately Aria, this monument of keyboard literature travels through 30 variations, exploring thematic possibilities while showcasing the composer's brilliant sense of motivic possibilities.
My First Book of Bach: Favorite Pieces in Easy Piano Arrangements by David Dutkanicz Students of all ages will delight in these 26 simple piano arrangements of familiar melodies such as "Jesu, Joy of Man's Desiring" and "Wachet Auf," plus other fun-to-play pieces.
Harmonized Chorales for Keyboard by Johann Sebastian Bach This affordable volume features 371 harmonized chorales in closed scores, offering students of counterpoint and harmony a collection of enormous theoretical and practical importance. Breitkopf-Härtel edition.
The Well-Tempered Clavier: Books I and II, Complete by Johann Sebastian Bach All 48 preludes and fugues in all major and minor keys. Authoritative Bach-Gesellschaft edition. Explanation of ornaments in English, tempo indications, music corrections.