What, if any of these, make sense to a mid-level C developer: read K&R inside and out, had a bit of code in the kernel, worked on a major "C+", i.e., "C with cl

What, if any of these, make sense to a mid-level C developer: read K&R inside and out, had a bit of code in the kernel, worked on a major "C+", i.e., "C with classes" project? The only one of these I own are "Mastering Algorithms with C" (fairly useful) and "Understanding the Linux Kernel" (rather useful and well written, could actually be used for an graduate/advanced undergraduate operating systems class).