This is the Linux Kernel Hackers' Guide, Alpha version 0.6. It may be of use to device driver writers and those writing extensions to the proc filesystem, and possibly to others as well. Please send me (johnsonm@nigel.vnet.net) all comments, as noted on the cover page. Please note that this is the last release of the monolithic KHG. It is being transformed into a collection of papers. If you are interested in participating, please send me email and tell me what you are interested in. Improvements over version 0.5 include more coverage of writing device drivers, the beginings of a tour of the kernel, and many typos fixed. There are probably other improvements that I have forgotten. michaelkjohnson