This is a comprehensive practice problem book, perfect for preparing for the Solar Power Advisor exam. * Solar Power Advisor Exam Practice Problem Book: * Publisher: Japan Housing Performance Inspection Association I have kept this at home, and the condition is good. Please use it to prepare for the exam. I am sorry, but I do not accept price negotiations for this product. Please purchase it at the listed price. Other: * Immediate purchase is welcome. Thank you for your consideration.