2013 staff picks (60):
>Biography & Memoir (15/60) 25.00%
>Book Club Ideas (19/60) 31.67%
>Comics & Graphic Novels (1/60) 1.67%
>Cookbooks & Food (5/60) 8.34%
>Eye-Opening Reads (15/60) 25%
>Family Matters (15/60) 25%
>For Art Lovers (2/60) 3.34%
>For History Lovers (19/60) 31.67%
>For Music Lovers (3/60) 5.00%
>For Sports Lovers (2/60) 3.34%
>Funny Stuff (8/60) 13.34%
>Historical Fiction (4/60) 6.67%
>Identity & Culture (6/60) 10.00%
>It’s All Geek To Me (6/60) 10.00%
>Kids’ Books (6/60) 10.00%
>Ladies First (3/60) 5.00%
>Let’s Talk About Sex (2/60) 3.34%
>Love Stories (7/60) 11.67%
>Mysteries & Thrillers (6/60) 10%
>No Biz Like Show Biz (2/60) 3.34%
>Nonfiction (25/60) 41.67%
>Rather Long (11/60) 18.34%
>Rather Short (5/60) 8.34%
>Realistic Fiction (11/60) 18.34%
>Sci Fi, Fantasy & Speculative Fiction (8/60) 13.34%
>Science! (7/60) 11.67%
>Seriously Great Writing (12/60) 20%
>Short Stories, Essays & Poetry (4/60) 6.67%
>Tales From Around The World (13/60) 21.67%
>The Dark Side (17/60) 28.34%
>The States We’re In (4/60) 6.67%
>Young Adult (4/60) 6.67%
2021 staff picks (179)
>Biography & Memoir (34/179) 18.99%
>Book Club Ideas (67/179) 37.43%
>Comics & Graphic Novels (7/179) 3.91%
>Cookbooks & Food (11/179) 6.15%
>Eye-Opening Reads (50/179) 27.93%
>Family Matters (44/179) 24.58%
>For Art Lovers (10/179) 5.59%
>For History Lovers (33/179) 18.44%
>For Music Lovers (12/179) 6.70%
>For Sports Lovers (4/179) 2.34%
>Funny Stuff (11/179) 6.15%
>Historical Fiction (14/179) 7.82%
>Identity & Culture (70/179) 39.10%
>It’s All Geek To Me (12/179) 6.70%
>Kids’ Books (3/179) 1.68%
>Ladies First (47/179) 2.63%
>Let’s Talk About Sex (17/179) 9.50%
>Love Stories (30/179) 16.76%
>Mysteries & Thrillers (18/179) 10.06%
>No Biz Like Show Biz (15/179) 8.40%
>Nonfiction (84/179) 46.93%
>Rather Long (14/179) 7.82%
>Rather Short (9/179) 5.03%
>Realistic Fiction (34/179) 18.99%
>Sci Fi, Fantasy & Speculative Fiction (15/179) 8.38%
>Science! (8/179) 4.47%
>Seriously Great Writing (49/179) 27.37%
>Short Stories, Essays & Poetry (25/179) 13.97%
>Tales From Around The World (34/179)18.99%
>The Dark Side (23/179) 12.85%
>The States We’re In (52/179) 29.05%
>Young Adult (6/179) 3.35%
I didn't feel up to pulling data from each year in between, but I think the staff picks from these two years is interesting enough to observe. Most interesting points for me: "Identity & Culture" in 2021 is up nearly 30 points compared to 2013; "Science!" is down by more than half.