1. Edington, JW (1976) Practical Electron Microscopy in Materials Science, Van Nostrand-Reinhold New York. Part 2 of the book is still an excellent source of guidance if you are doing hands-on DP acquisition and analysis and the Appendix has great Kikuchi maps.
2. Schwartz, AJ, Kumar, M and Adams, BL (Eds.) (2000) Electron Backscatter Diffraction in Materials Science, Springer NY. Kikuchi patterns in the SEM: an insight into what could really be done in terms of orientation determination in TEM, if we put our minds to it.
3. Thomas, G (1978) in Modern Diffraction and Imaging Technique in Materials Science p 399 Eds. S Amelinckx, R Gevers and J Van Landuyt North-Holland Amsterdam. Still the best reference because no one has really done anything of significance with Kikuchi patterns in TEM since Gareth Thomas, 40 years ago (check out the other references below).