References in approximate order of increasing difficulty and sophistication:

• D. Watkins, Fundamentals of Matrix Computations, 3rd Edn., John Wiley, 2010.
• L.N. Trefethen and D. Bau, III, Numerical Linear Algebra, SIAM, 1997.
• J.W. Demmel, Applied Numerical Linear Algebra, SIAM, 1997.
• H. Wendland, Numerical Linear Algebra, An Introduction, Cambridge University Press, 2017.
• A. Bjorck, Numerical Methods in Matrix Computations, Springer, 2015.
• G.H. Golub & C.F. Van Loan, Matrix Computations, 4th Edn., The Johns Hopkins University Press, Baltimore, 2013.

We mainly use our lecture notes, which are available from myCourses