Is there a "reading now" on apple books for iMac?

I like the 'reading now' tab on Apple Books for iOS, i.e. on my iPhone and iPad, but I don't see an equivalent on the Apple Books for MacOS, i.e. for my iMac. The only way to bring up what I'm reading, so far as I can see, is to go up to the top menu, File->Open Recent. Is there something I'm not seeing? Thanks.