Second the rec on Sadava. I strongly preferred it to Campbell, the other standard intro bio text, which I found insufficiently precise. I’d go to make an Anki card about some concept, only to find that Campbell’s discussion lacked enough precision for me to state exactly what was going on. Sadly, I haven’t read another biology book (having been quite satisfied with Sadava’s), so I can’t make a Luke-compliant recommendation.
Second the rec on Sadava. I strongly preferred it to Campbell, the other standard intro bio text, which I found insufficiently precise. I’d go to make an Anki card about some concept, only to find that Campbell’s discussion lacked enough precision for me to state exactly what was going on. Sadly, I haven’t read another biology book (having been quite satisfied with Sadava’s), so I can’t make a Luke-compliant recommendation.