It was another busy week for Australia's top brokers. This has led to the release of a number of broker notes.

Three broker buy ratings that you might want to know more about are summarised below. Here's why brokers think these ASX shares are in the buy zone:

Arcadium Lithium (ASX: LTM)

According to a note out of Bell Potter, its analysts have retained their buy rating on this lithium miner's shares with a trimmed price target of $6.25. Bell Potter highlights that Arcadium Lithium recently held its investor day event. It notes that the event focused on the diversified and vertically integrated nature of its tier one asset portfolio and the company's enormous expansion potential. The broker also points out that even after including aggressive lithium production growth from China and Africa, Arcadium Lithium is predicting market deficits from 2027. This could be good news for lithium prices and the company. Particularly given how much its production could grow in the coming years. Combined with its shares trading at a material discount to its depreciated asset base, Bell Potter thinks this is a compelling buying opportunity for investors. The Arcadium Lithium share price ended the week at $4.08.

Harvey Norman Holdings Limited (ASX: HVN)

Another note out of Bell Potter reveals that its analysts have initiated coverage on this retail giant's shares with a buy rating and $5.80 price target. Bell Potter rates Harvey Norman highly due to its unique characteristics as an integrated retailer and property owner with a leading competitive advantage as a franchisor/retailer. It also think that the introduction of artificial intelligence features in mobile phones and personal computers could lead to a major upgrade cycle of consumer electronics. The Harvey Norman share price was fetching $4.91 at Friday's close.

Web Travel Group Ltd (ASX: WEB)

Analysts at Morgans have retained their add rating on this business to business travel marketplace provider's shares with a reduced price target of $8.60. The broker made the move after adjusting its model to reflect the demerger of its consumer business, Webjet Group (ASX: WJL). In respect to Web Travel Group, Morgans highlights management's strong track record of winning market share and believes this trend can continue. The Web Travel Group share price ended the week at $7.40. It is also worth noting that Morgans commenced coverage on the the spun-off Webjet Group business with an add rating and 95 cents price target.