The greatest thing about blogs - ego-strokes aside - is that they are searchable. To search for information in previous posts, just look for the white box next to the little orange Blogger logo at the top of the screen (see image). Type in a relevant word or two, click the "search blog" link or press the enter key, and you should get a list of posts containing those words. Then all you need to do is scroll down the list to find the one you remember.
So - try it now: Type the word reviews in the box at the top of the screen and click the "search blog" link. This should retrieve a list of all the posts that are book reviews. See anything that looks good? Clicking the title of the book will take you to the library's catalog, where you can request it.