The cover to Lover's World Library #8 features a rather modest, demure romantic image by Keith Chatto - certainly milder than the cover he produced for Lovers World Library #12:
Lover's World Library #8 carries the story Storm Warning, which I've made passing reference to before. In that post I noted the publication of Storm Warning in Unforgettable Love Stories #11. I also noted that it had previously been published in Unforgettable Love Stories #1.
Now that I look at these issues more closely, I'm not so sure that Storm Warning was previously printed in #1 - compare the cover scan on AusReprints...
...and I wonder whether the cropping on the right hand side of the cover to #1 has also chopped the second digit off #11, making it appear as #1.
Inconclusive - but it doesn't appear likely that 11 issues of a single Page Publications series would have been issued within such a short time frame as to carry a $0.50 cover price on each issue.
Update 1/6/2018: Storm Warning was published by Page Publications under a new Chatto cover in Personal Romances #1:
Update 31/8/2018: The cover to Lovers World Library #12 previously appeared on Lovers World Library #9