GEOMETRIC & CLIFFORD ALGEBRA:
 General: Introductory:
Gull et al. 93/02;
Rodriguez 97/09;
 General:
Gull et al. 93/02;
Doran (thesis) 94;

Applied Geometric Algebra
by Lászlo Tiszá
[Spring 1976] Complete lecture notes for a course in
(middle 20th century style, nonClifford) geometric
algebra by one of MIT's most distinguished
natural philosophers. (MIT OpenCourseWare)

Maths for (Games) Programmers
by Ian C. G. Bell
[begun 1998] The name of the site is misleading, and the
headacheinducing wallpaper is unfortunate, but there are
few geometricalgebra resources online which can rival this
one. Topics include multivector calculus, multivector
generalrelativity, Hestenes's form of the Dirac equation,
etc.

Geometric Algebra of One and Many Multivector Variables
by Janne Pesonen
[University of Helsinki, 2007] About 200pp.; only first half of
text available.

Geometric Algebra
by E. Artin
[New York: Interscience, 1957]
Classic text of the midTwentieth Century school.
 Geometric Algebra for Physicists
by Chris Doran and Anthony Lasenby [Cambridge
University Press, 2003]. A complete textbook.

Relativistic Physics as Application of Geometric Algebra
by Eckhard Hitzer
[2005/01] This is a viXra paper, but the material is all
standard and very well presented.

Spin and Clifford algebras, an introduction
by Marc LachiezeRey
[2010/07]

Geometric Algebra: A natural representation of threespace
by James M. Chappell et al.
[2011/01]

Clifford Algebras and Spinors
by Ivan Todorov
[Bulgarian Journal of Physics 38, 3 (2011)]

Geometric Algebra
by Eric Chisolm
[2012/05]

Introduction to Clifford's Geometric Algebra
by Eckhard Hitzer
[Journal of the Society of Instrument and Control Engineers 51, 338
(2012)]

Applications of Clifford's Geometric Algebra
by Eckhard Hitzer et al.
[Advances in Applied Clifford Algebras 23, 377 (2013)]
 Types:
CLIFFORD ALGEBRAS;
GRASSMANN ALGEBRAS;
QUATERNIONS;
SCREWS;
SPINORS;
TWISTORS;
 Type: LMATRICES:
 Aspects: CLIFFORD ANALYSIS & MULTIVECTOR CALCULUS:
Ryan 2003/03;