I agree the Hill and Horowitz book is good and suggest that the lab
manual that accompany's it be purchased also.  It not only has experiments
but a lot of supplementary text as well.  Another source to consider,
depending on ones level, are the instructional material put out by Heathkit.
While not inspired, it has a very thorough beginning explanation of the
basics.  While not a text, The CMOS Cookbook, while dated, still has a lot
of excellent material on basic logic circuits, counters, shift registers,
timers, analog switches, and phase locked loops at the practical, build it
level.

John-