There is no PMBoK for ACP but you can see the some of the posts here to get an understanding of what to read http://pmzilla.com/forums/other-pmi-certifications/pmi-agile-certified-p...

You can consider taking up from Scrumstudy.com. The 3-day Agile Expert course mainly covers -

- Introduction to Agile/adaptive project management
- Overview of Agile - Values, principles and characteristics
- Domains of Agile practice
- Introduction to Agile practices, concepts, roles involved and artifacts- Scrum, XP, Kanban, Crystal etc.
- Comparison of various methods, selecting best suited method for a project
- Practical implementation considerations

The Contact Hours / PDUs awarded with this course are approved by PMI for PMI-ACP certification. However please note that those who are not eligible for PMI-ACP certification, they can also participate in this course.

Upon successful completion of the Agile Expert Certified training, students are awarded with:
• SCRUMstudy Agile Expert Certificate
• 24 PMI® Approved PDUs which can either be used for meeting continuing education requirements of certified PMPs or be used for PMI-ACP exam if the participant wants to pursue PMI-ACP certification (provided the participant satisfies the eligibility criteria of PMI-ACP).

To know more about our Agile course, please visit http://www.scrumstudy.com/CoursesTab.asp

Just wanted to check if you have study material for ACP and e-copy of Mike grif to read. I am also planning to give exam. But I dnt have any study material as of now.
- Sjo

If you are looking for best content, training and exam, checkout 360PMO. They offer free study guidance session that will give you a good kick start.

http://www.360pmo.com/home/training/pmi-acp-exam-prep-training/