These are all good TOC and Critical Chain books I've personally read to date (that I think are good.) I recommend reading them in the listed order. The ones I list as concept books are important to read first so the more technical books make sense.
Theory of Constraints (TOC)
- The Goal - THE TOC concept overview, novel form
- Necessary But Not Sufficient - TOC and ERP concepts, novel form
- Theory of Constraints - Technical aspects of TOC, further concept depth
- Critical Chain - THE Critical Chain concept overview, novel form
- Project Management in the Fast Lane - Technical aspects of Critical Chain
- Projects in Less Time - The Basics of Critical Chain
- Critical Chain Project Management - Generally touted as one of the best CCPM books
