The Core Curriculum for Lactation Consultant Practice, Third Edition, is now out of print and limited supplies of the existing copies are all that is available until the new edition is released in mid 2018. If you wish a copy to use for studying for the IBLCE exam, or for your reference, purchase it quickly before supplies run out.
The publisher Jones and Bartlett $124http://www.jblearning.com/
Amazon via the LER virtual bookstore $73
https://www.amazon.com/Core-Curriculum-Lactation-Consultant-Practice/dp/0763798797/ref=as_sl_pc_tf_til?tag=lactaeducares-20&linkCode=w00&linkId=6c676a1909a26ccdf7bfba6d1f5b69e6&creativeASIN=0763798797