The absence of this album and the subequent one, "Album," is one of the great mysteries of the universe. The later album, "Up Your Alley," is available. It's useless to ask why specific albums and songs are not available. Some Spotify Community "Rock Star" or other will always come and give you the same inane form text or some link to the same inane explanation. After a while, it starts insulting the intelligence of people who already know. What they will NEVER do is give you SPECIFIC information about why certain albums and songs are not available, even though Daniel Ek and every Spotify employee almost certainly knows EXACTLY why specific things are not available. For some reason, it's against policy for anyone to give specific information, so this forum is littered with the inane form text or links thereto. The only exception is when the absence generates big media attention, like when Prince pulled his catalog in 2015, and of course Tay-Tay. Both are back now. I've never been able to find out why these Joan Jett albums are not available. The inane Spotify Community form text will tell you to contact the record label, but everyone knows that's a moronic suggestion. Even if you can find a way to send a message to a label (which in the case of the big ones is almost always impossible) you'll never get a reply. Better for Spotify just to tell us the details, but they never will. So just get used to the form text and roll your eyes every time you see it...
In response to the original poster, there is 101 reasons as to why some albums are available and others aren't. A mix of publishing rights/artists constent etc, who owns the masters etc. Some albums are easier to get consent more than others.
I'm not sure if it helps negotiations if Spotify say Album X isn't available because the bass player who co-wrote half the album won't sign off streaming rights. Hence negotiations are done behind the scenes.
Def Leppard were very open as to why they withheld their albums, Bob Seger has some of his albums available but not all. Its annoying to have gaps but if artists don't want their music available there are limits to what Spotify can do.
I also noticed Player doesn't have some of their albums just like as you mentioned, Bob Seger. I'll try to search for some others, but I really wanted to hear some of Player's stuff last night, and realized it wasn't on Spotify. Also one thing that surprised me is that: Bryan Adams' Reckless isn't on YouTube and it's hard to find on CD. Now I'm not sure if that's the same thing that's going on with Fleetwood Mac's Mirage whereas they're making Deluxe and Anniversary editions, but they stop making single CD versions of the album. But Mirage is on YouTube, Reckless is really only found on Spotify which is weird. It's also both 30th Anniversary and 2014 Remaster (Original Album Track Listing). Just seems weird with some of these but, it is what it is I guess. I just purchased Reckless (single CD) off Barnes & Noble, it will hopefully come by tomorrow, I'll see if it's any good.
It's great you now have Joan Jett, but add one artist and take away another. I know for a fact Edison Lighthouse was on Spotify, and now gone. Also, please stop putting these horrible re-recorded versions of songs on here. They excuse my French, SUCK!